Gary Hieftje


Hieftje Lab Logo

Indiana University, 800 E. Kirkwood Avenue, Bloomington, IN 47405
Phone: 812 855 2189, Fax: 812 855 0958, Email


Publications

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577. Orejas, J., Pfeuffer, K.P., Ray, S.J., Pisonero, J., Sanz-Medel, A., and Hieftje, G M. (2014). Effect of Internal and External Conditions on Ionization Processes in the FAPA Ambient Desorption/Ionization Source. Anal. Bioanal. Chem., Accepted (2014)

575. Pfeuffer, K.P., Caldwell, J., Shelley, J.T., Ray, S.J., and Hieftje, G.M., Detection of Counterfeit Electronic Components Through Ambient Mass Spectrometry and Chemometrics. Analyst, 139(18), 4505-4511 (2014).

574. Hieftje, G.M., Report: Heritage Lecture HL05 Presented at the 2014 Winter Conference on Plasma Spectrochemistry. ICP Info. Newsl., 39, (2014).

573. Hieftje, G.M., Report: Session on Laser Assisted Plasma Spectrochemistry at the 2014 Winter Conference on Plasma Spectrochemistry. ICP Info. Newsl., 39, (2014).

570. Voronov, M., Hoffman, V., Steingrobe, T., Buscher, W., Engelhard, C., Ray, S.J., and Hieftje, G.M., Plasma Imaging with a Novel Acousto-Optical Spectrometer. 31st ICPIG, July 14-19, 2013, Garanda, Spain, pgs 6-9, (2013).

568. Smoluch, M., Mielczarek, P., Reszke, E., Hieftje, G.M., and Silberring, J., Determination of Psychostimulants and their Metabolites by Electrochemistry Linked On-Line to Flowing Atmospheric Pressure Afterglow Mass Spectrometry. Analyst, 138, 4350-4355, (2014).

567. Voronov, M., Hoffmann, V., Steingrobe, T., Buscher, W., Engelhard, C., Storey, A.P., Ray, S.J., and Hieftje, G.M., Spot Patterns and Instabilities in a Pulsed Low-Pressure RF Glow Discharge. Plasma Sources Science Technology (Special Issue Article), Accepted, (2014).

566. Dennis, E.A., Gundlach-Graham, A.W., Ray. S.J., Enke, C.G., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Zoom-TOFMS: Addition of a Constant-Momentum-Acceleration "Zoom" Mode to Time-of-Flight Mass Spectrometry. Anal. Bioanal. Chem., In Press, (2014).

565. Pfeuffer, K.P., Ray, S.J., and Hieftje, G.M., Measurement and Visulation of Mass Transport for the Flowing Atmospheric Pressure Afterglow (FAPA) Ambient Mass Spectrometry Source. J. Am. Soc. for Mass Spectrom., 25(5), 800-808 (2014).

564. Yuill, E., Sa, N., Ray, S.J., Hieftje, G.M., and Baker, L.A., Electrospray Ionization with Nanopipette Emitters with Tip Diameters of Less Than 100 Nanometers. Anal. Chem., 85(18), 8498-8502, (2013).

563. Dennis, E.A., Ray, S.J., Gundlach-Graham, A.W., Enke, C.G., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Constant-Momentum Acceleration Time-of-Flight Mass Spectrometry With Energy Focusing. J. Am. Soc. for Mass Spectrom., 24(12),1853-1861, (2013).

562. Gundlach-Graham, A.W., Dennis, E.A., Ray, S.J., Enke, C.G., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Interleaved Distance of Flight Mass Spectrometry: A Simple Method to Improve The Instrument Duty Factor. J. Am. Soc. for Mass Spectrom., 24, 1736-1744 (2013).

561. Pfeuffer, K.P., Schaper, J.N., Shelley, J.T., Ray, S.J., Chan, G.C.-Y., Bings, N.H., and Hieftje, G.M., Halo-Shaped Flowing Atmospheric Pressure Afterglow - a Heavenly New Design for Simplified Sample Introduction and Improved Ionization in Ambient Mass Spectrometry. Anal. Chem., 85(15), 7512-7518, (2013).

560. Graham, A.W., Dennis, E.A., Ray, S.J., Enke, C.G., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., First Inductively Coupled Plasma–Distance-of-Flight Mass Spectrometer: Instrument Performance with a Microchannel Plate-Phosphor Imaging Detector. J. Anal. At. Spec., 28, 1385-1395 (2013).

559. Cheung, Y., Chan, G.C.-Y., and Hieftje, G.M., Flagging Matrix Effects and System Drift in Organic-solvent-based Analysis by Axial-Viewing Inductively Coupled Plasma–Atomic Emission Spectrometry. J. Anal. At. Spec., 28, 241-240, (2013).

558. Wang, Z., Schwartz, A.J., Ray, S.J., and Hieftje, G.M., Determination of Trace Sodium, Lithium, Magnesium, and Potassium Impurities in Colloidal Silica by Slurry Introduction into an Atmospheric-Pressure Solution-Cathode Glow Discharge and Atomic Emission Spectrometry. J. Anal. At. Spec., 28, 234-240, (2013).

557. Dennis, E.A., Gundlach-Graham, A.W., Enke, C.G., Ray, S.J., Carado, A.J., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., How Constant-Momentum Acceleration Decouples Energy and Space Focusing in Distance-of-Flight and Time-of-Flight Mass Spectrometries.  J. Am. Soc. for Mass Spectrom., 24(5), 690-700 (2013). 

556. Schwartz, A.J., Wang, Z., Ray, S.J., and Hieftje, G.M., Universal Anion Detection by Replacement-Ion Chromatography with an Atmospheric-Pressure Solution-Cathode Glow Discharge Photometric Detector. Anal. Chem., 85(1), 129-137, (2013).

555. Chan, G.C.-Y. and Hieftje, G.M., Spatial Emission Profiles for Flagging Matrix Interferences in Axial-Viewing Inductively Coupled Plasma-Atomic Emission Spectrometry: Part II - Statistical Protocol. Anal. Chem., 85(1), 58-65, (2013).

554. Chan, G.C.-Y. and Hieftje, G.M., Spatial Emission Profiles for Flagging Matrix Interferences in Axial-Viewing Inductively Couples Plasma-Atomic Emission Spectrometry: Part I - Profile Characteristics and Flagging Efficiency. Anal. Chem., 85(1), 50-58, (2013).

553. Hieftje, G.M., Summary of the 2012 Winter Converence on Plasma Spectrochemistry January 9-14, 2012.  J. Anal. At. Spec., 27, 1169-1172, (2012). 

552. Pfeuffer, K.P., Shelley, J.T., Ray, S.J., and Hieftje, G.M., Visualization of Mass Transport and Heat Transfer in the FAPA Ambient Ionization Source.  J. Anal. At. Spec. 28, 379-387 (2013). 

551. Gundlach-Graham, A.W., Dennis, E.A., Ray, S.J., Enke, C.G., Carado, A.J., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Extension of the Focusable Mass Range in Distance-of-Flight Mass Spectrometry with Multiple Detectors.  Rapid Commun. Mass Sp., 26, 2526-2534, (2012). 

550. Schaper, J.N., Pfeuffer, K.P., Shelley, J.T., Bings, N.H., and Hieftje, G.M., Drop-on-Demand Sample Introduction System Coupled with the Flowing Atmospheric-Pressure Afterglow for Direct Molecular Analysis of Complex Liquid Micro-Volume Samples.  Anal. Chem., 84, 9246-9252, (2012). 

549. Chan, G.C.-Y., Zhu, Z., and Hieftje, G.M., Operating Parameters and Observation Modes for Individual Droplet Analysis by Inductively Coupled Plasma/Atomic Emission Spectrometry.  Spectrochim. Acta, Part B, 76, 77-86, (2012). 

548. Gamez, G., Voronov, M., Ray, S.J., Hoffman, V., Hieftje, G.M., and Michler, J., Surface Elemental Mapping Via Glow Discharge Optical Emission Spectroscopy.  Spectrochim. Acta, Part B, 70, 1-9, (2012). 

547. Chan, G.C.-Y., Zhu, Z., and Hieftje, G.M., Effect of Single Aerosol Droplets on Plasma Impedance in the Inductively Coupled Plasma.  Spectrochim. Acta, Part B, 76, 87-95, (2012). 

546. Enke, C.G., Ray, S.J., Graham, A.W., Dennis, E.A., Hieftje, G.M., Carado, A.J., Barinaga, C.J., and Koppenaal, D.W., Distance-of-Flight Mass Spectrometry: A New Paradigm for Mass Separation and Detection.  Annu. Rev. Anal. Chem., 5, 487-504, (2012). 

545. Voronov, M., Hoffman, V., Wallendorf, T., Marke, S., Moench, J., Engelhard, C., Buscher, W., Ray, S.J., and Hieftje, G.M., Glow Discharge Imaging Spectroscopy with a Novel Acousto-Optical Imaging Spectrometer.  J. Anal. At. Spec., 27(3), 419-425, (2012). 

544. Schwartz, A., Ray, S.J., Elish, E.A., Storey, A.P., Rubinshtein, A.A., Chan, G.C.-Y., Pfeuffer, K.P., and Hieftje, G.M., Visual Observations of an Atmospheric-Pressure Solution-Cathode Glow Discharge.  Talanta (Zolotov 80th Birthday Special Issue), 102 (December 2012), 26-33, (2012).

543. Voronov, M., Hoffman, V., Buscher, W., Engelhard, C., Ray, S., and Hieftje, G., Thermal Mechanism for Formation of Electrical Prepeak and Pressure Waves in a Microsecond Direct Current Pulsed Glow Discharge with a Grimm-type Source:  A Modeling Investigation.  J. Anal. At. Spec., 27, 1225-1233, (2012). 

542. Graham, A.W., Ray, S.J., Enke, C.G., Felton, J.A., Barinaga, C., Koppenaal, D., and Hieftje, G.M., Resolution and Mass Range Performance in Distance-of-Flight Mass Spectrometry with a Multichannel Focal-Plane Camera Detector.  Anal. Chem., 83(22), 8552-8559, (2011). 

541. Gonzalvez, A., Shelley, J.T., Wiseman, J., Armenta, S., de la Guardia, M., and Hieftje, G.M., Direct Quantification of Veterinary Residues in Foodstuff Through Desorption Electrospray Ionization-Mass Spectrometry.  Analyst, Under revision,  (2012). 

540. Chan, G.C.-Y., Shelley, J.T., Wiley, J.S., Engelhard, C., Jackson, A., Cooks, R.G., and Hieftje, G.M., Elucidation of Reaction Mechanisms Responsible for Afterglow and  Reagent-Ion Formation in the Low-Temperature Plasma Probe Ambient Ionization Source.  Anal. Chem., 83(10), 3675-3686, (2011). 

539. Shelley, J.T., Chan, G.C.-Y., and Hieftje, G.M., Understanding the Flowing Atmospheric -Pressure Afterglow (FAPA) Ambient Ionization Source Through Optical Means.  J. Am. Soc. for Mass Spectrom., 23(2), 407-417, (2012). 

538. Shelley, J.T., Wiley, J.S., and Hieftje, G.M., Ultrasensitive Ambient Mass Spectrometric Analysis with a Pin-to-Capillary Flowing Atmospheric-Pressure Afterglow Source.  Anal. Chem., 83(14), 5741-5748, (2011). 

537. Shelley, J.T. and Hieftje, G.M., Ambient Mass Spectrometry: Approaching the Chemical Analysis of Things as They Are.  J. Anal. At. Spec., 26(11), 2153-2159, (2011). 

536. Elish, E., Engelhard, C., Buscher, W., Ray, S., and Hieftje, G., Schlieren Imaging of Flow Actuation Produced by the Cooling Interface in a Low-Flow Inductively Coupled Plasma.  J. Anal. At. Spec., Under revision,  (2013). 

535. Chan, G.C.-Y., Shelley, J.T., Jackson, A.U., Wiley, J.S., Engelhard, C., Cooks, R.G., and Hieftje, G.M., Spectroscopic Plasma Diagnostics on a Low-Temperature Plasma Probe for Ambient Mass Spectrometry.  J. Anal. At. Spec., 26(7), 1434-1444, (2011). 

534. Voronov, M., Hoffmann, V., Buscher, W., Engelhard, C., Ray, S.J., and Hieftje, G.M., Pressure Waves Generated in a Grimm-type Pulsed Glow Discharge Source and Their Influence on Discharge Parameters.  J. Anal. At. Spec., 26(4), 811-815, (2011). 

533. Hieftje, G.M., Editorial:  2010 Winter Conference on Plasma Spectrochemistry.  ICP Info. Newsl., 35(8), 1168-1169, (2010). 

532. Felton, J.A., Schilling, G.D., Ray, S.J., Sperline, R.P., Denton, M.B., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Evaluation of a Fourth-Generation Focal Plane Camera for use in Plasma-Source Mass Spectrometry.  J. Anal. At. Spec., 26(2), 300-304, (2011). 

531. Graham, A.W., Ray, S.J., Enke, C.G., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., First Distance-of-Flight Instrument: Opening a New Paradigm in Mass Spectrometry.  J. Am. Soc. for Mass Spectrom., 22(1), 110-117, (2011). 

530. Engelhard, C., Ray, S.J., Buscher, W., Hoffman, V., and Hieftje, G.M., Correcting Distortion in a Monochromatic Imaging Spectrometer for Application to Elemental Imaging by Glow Discharge-Optical Emission Spectrometry.  J. Anal. At. Spec., 25(12), 1874-1881, (2010). 

529. Hieftje, G.M., Atomic Spectrometry: 2010.  J. Anal. At. Spectrom., 25(5), 611-612, (2010). 

528. Hieftje, G.M., Plasma Spectrochemical Instrumentation and Microplasmas: Symposium Report.  ICP Info. Newsl., 35(8), 1168-1169, (2010).

527. Shelley, J.T. and Hieftje, G.M., Fast Transient Analysis and First-Stage Collision-induced Dissociation with the Flowing atmospheric-Pressure Afterglow Ionization Source to Improve Analyte Detection and Identification.  The Analyst, 135(4), 682-687, (2010). 

526. Shelley, J.T. and Hieftje, G.M., Ionization Matrix Effects in Plasma-Based Ambient Mass Spectrometry Sources.  J. Anal. At. Spec., 25(3), 345-350, (2010).  [link]

525. Chan, G.C.-Y. and Hieftje, G.M., Algorithm to Determine Matrix-Effect Crossover Points for Overcoming Interferences in Inductively Coupled Plasma-Atomic Emission Spectrometry.  J. Anal. At. Spec., 25(3), 282-294, (2010). [link]

524. Rogers, D.A., Ray, S.J., and Hieftje, G.M., Use of a nano-electrospray/inductively coupled plasma dual-source time-of-flight mass spectrometer for chromium speciation J. Anal. At. Spec., 25(1), 62-73, (2010). nk]

523. Hieftje, G.M., University Research and Teaching - Symbiosis or Conflict. Division Analytical Chemistry Newsletter, American Chemical Society, (Spring), 16-21, (1992).

522. Rogers, D.A., Ray, S.J., and Hieftje, G.M., An Electrospray/Inductively Coupled Plasma Dual-Source Time-of-Flight Mass Spectrometer for Rapid Metallomic and Speciation Analysis.  Part 2:  Atomic Channel and Dual-Channel Characterization.  Metallomics, 2(4), 280-288, (2010).  [link]

521. Rogers, D.A., Ray, S.J., and Hieftje, G.M., An Electrospray/Inductively Coupled Plasma Dual-Source Time-of-Flight Mass Spectrometer for Rapid Metallomic and Speciation Analysis.  Part 1:  Molecular Channel Characterization.  Metallomics, 2(4), 271-279, (2010).  [link]

520. Schilling, G.D., Ray, S.J., Sperline, R.P., Denton, M.B., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Optimization of Ag Isotope-Ratio Precision with a 128-Channel Array Detector Coupled to a Mattauch-Herzog Mass Spectrograph.  J. Anal. At. Spec., 25, 322-327, (2010).  [link]

519. Rubinshtein, A.A., Schilling, G.D., Ray, S.J., Sperline, R.P., Denton, M.B., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Characterization of a Third-Generation Faraday-Strip Array Detector Coupled to a Mattauch-Herzog Geometry Mass Spectrograph with a dc-Glow Discharge Ionization Source.  J. Anal. At. Spec., 25, 735-738, (2010). 

518. Schilling, G.D., Shelley, J.T., Barnes IV, J.H., Sperline, R.P., Denton, M.B., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Detection of Positive and Negative Ions from a Flowing Atmospheric Pressure Afterglow using a Mattauch-Herzog Mass Spectrograph Equipped with a Faraday-Strip Array Detector. J. Am. Soc. for Mass. Spectrom., 21(1), 97-103, (2010). [link]

517. Hieftje, G., Having a Gas. Chemical Technology, 5(5), 1, (2008).  [link]

516. Schilling, G.D., Ray, S.J., Rubinshtein, A.A., Felton, J.A., Sperline, R.P., Denton, M.B., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Evaluation of a 512-Channel Faraday-Strip Array Detector Coupled to an Inductively Coupled Plasma Mattauch-Herzog Mass Spectrograph. Anal. Chem., 81(13), 5467-5473, (2009).  [link]

515. Hieftje, G., Remembrances of a Special Scientist: P.W.J.M. Boumans. Spectrochim. Acta, Part B, 64(4), 302, (2009).  [link]

514. Hieftje, G., Weighing up the future of scientific tools. Nature Chemistry, 1, 10-11, (2009).  [link]

513. Hieftje, G.M., Inorganic Mass Spectrometry: Principles and Applications (Book Review). Int. J. Mass Spectrom., 281(1-2), 101-102, (2009).  [link]

512. Chan, G.C.-Y. and Hieftje, G.M., Fundamental Characteristics of Plasma-related Matrix-Effect Cross-Over Points in Inductively Coupled Plasma-Atomic Emission Spectrometry. J. Anal. At. Spec., 24(4), 439-450, (2009).  [lin

511. Rogers, D., Ray, S., and Hieftje, G., An Electrospray/Inductively Coupled Plasma Dual-Source Time-of-Flight Mass Spectrometer for Rapid Metallomic and Speciation Analysis Part I: Instrument Design.  Metallomics, 1(1), 67-77, (2009).  [link]

510. Shelley, J.T., Wiley, J.S., Chan, G.C.-Y., Schilling, G., Ray, S., and Hieftje, G., Characterization of Direct-Current Atmospheric-Pressure Discharges Useful for Ambient Mass Spectrometry.  J. Am. Soc. for Mass. Spectrom., 20(5), 837 - 844, (2009).  [link]

509. Shelley, J.T., Ray, S., and Hieftje, G., Laser Ablation Coupled to a Flowing Atmospheric-Pressure Afterglow for Ambient Mass Spectral Imaging.  Anal. Chem., 80 (21), 8308-8313  (2008).  [link]

508. Zhu, Z., Chan, G.C.-Y., Ray, S.J., Zhang, X., and Hieftje, G., Microplasma Source Based on a Dielectric Barrier Discharge for the Determination of Mercury by Atomic Emission Spectrometry.  Anal. Chem., 80(22), 8622-8627, (2008).  [link]

507. Shelley, J.T., Potyrailo, R.A., Ray, S.J., and Hieftje, G.M., Fiber-Optic Chemical Sensing Using Fiber-Loop Ring-Down Spectroscopy.  Rev. Sci.Inst., Internal paper,  (2009). 

506. Schilling, G., Shelley, J.T., Broekaert, J.A.C., Sperline, R., Denton, M.B., Barinaga, C.J., Koppenaal, D., and Hieftje, G.M., Use of an Ambient Ionization Flowing Atmospheric-Pressure Afterglow Source for Elemental Analysis through Hydride Generation.  J. Anal. At. Spec., 24, 34-40, (2009).  [link]

505. Zhu, Z., Chan, G.C.-Y., Ray, S.J., Zhang, X., and Hieftje, G.M., Use of a Solution Cathode Glow Discharge for Cold Vapor Generation of Mercury with Determination by ICP-Atomic Emission Spectrometry.  Anal. Chem., 80(18), 7043-7050, (2008).  [link]

504. Webb, M.R. and Hieftje, G.M., Spectrochemical Analysis using Discharges with Solution Electrodes. Anal. Chem., 81(3), 862-867, (2009).  [link]

503. Chan, G.C.-Y., Comment on “Matrix effect of aluminum, calcium and magnesium in axially viewing inductively coupled plasma atomic emission spectrometry” by M. T. Larrea, B. Zaldívar, J. C. Fariñas, L. G. Firgaira and M. Pomares. J. Anal. At. Spec., (Advance Article), 1401-1406, (2008).  [link]

502. O'Connor, N. and Hieftje, G., Happy New Year from JAAS and RSC Publishing – recent developments and continuing growth. J. Anal. At. Spectrom., 23(1), 11-12, (2008).  [link]

501. Jakubowski, N. and Hieftje, G., The Broadening Scope of JAAS. J. Anal. At. Spectrom., 23(1), 13-14, (2008).  [link]

500. Chan, G.C.-Y. and Hieftje, G.M., In-situ Determination of Cross-over Point for Overcoming Plasma-related Matrix Effects in Inductively Coupled Plasma - Atomic Emission Spectrometry. Spectrochim. Acta, Part B, 63, 355-356, (2008). [link]

499. Koppenaal, D.W. and Hieftje, G.M., Metallomics - An Interdisciplinary and Evolving Field. J. Anal. At. Spec., 22(8), 855, (2007). [link]

498. Danielson, T.L. and Hieftje, G.M., Metal Halide Salts Doped into the Original Silicone Cladding of an Optical Fiber for Optical Humidity Sensing. Internal Paper, (2007).

497. Liu, K., Huang, M., and Hieftje, G.M., Humidity-Induced Spectral Shift in a Cross-Dispersion Echelle Spectrometer and its Theoretical Investigation.  Spectroscopy and Spectral Analysis, 30(09), 2555-2559, (2010). 

496. Engelhard, C., Chan, G.C.-Y., Gamez, G., Buscher, W., and Hieftje, G.M., Plasma Diagnostic on a Low-Flow Plasma for Inductively Coupled Plasma Optical Emission Spectrometry Spectrochim. Acta, 63B(6), 619-629, (2008).  [

495. Andrade, F.J., Shelley, J.T., Wetzel, W.C., Webb, M.R., Gamez, G., Ray, S.J., and Hieftje, G.M., Atmospheric Pressure Chemical Ionization Source. 2.  Desorption-Ionization for the Direct Analysis of Solid Compounds.  Anal. Chem., 80(8), 2654-2663, (2008). [link]

494. Andrade, F.J., Shelley, J.T., Wetzel, W.C., Webb, M.R., Gamez, G., Ray, S.J., and Hieftje, G.M., Atmospheric Pressure Chemical Ionization Source. 1.  Ionization of Compounds in the Gas Phase.  Anal. Chem., 80(8), 2646-2653, (2008). [link]

493. Chan, G.C.-Y. and Hieftje, G.M., Use of Vertically Resolved Plasma Emission as an Indicator for Flagging Matrix Effects and System Drift in Inductively Coupled Plasma–Atomic Emission Spectrometry. J. Anal. At. Spec., 23(2), 193-240, (2008). [link]

492. Chan, G.C.-Y. and Hieftje, G.M., Warning Indicators for the Presence of Plasma-related Matrix Effects in Inductively Coupled Plasma- Atomic Emission Spectrometry. J. Anal. At. Spec., 23(2), 181-192, (2008). [link]

491. Webb, M.R., Andrade, F.J., and Hieftje, G.M., Compact Glow Discharge for the Elemental Analysis of Aqueous Samples.  Anal. Chem., 79(20), 7899-7905, (2007).  [link]

490. Webb, M.R., Andrade, F.J., and Hieftje, G.M., High-Throughput Elemental Analysis of Small Aqueous Samples by Emission Spectrometry with a Compact, Atmospheric-Pressure Solution-Cathode Glow Discharge.  Anal. Chem., 79(20), 7807-7812, (2007).  [link]

489. Schilling, G.D., Andrade, F.J., Barnes IV, J.H., Sperline, R.P., Denton, M.B., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Continuous Simultaneous Detection in Mass Spectrometry.  Anal. Chem., 79(20), 7662-7668, (2007).    [link]

488. Engelhard, C., Scheffer, A., Maue, T., Hieftje, G.M., and Buscher, W., Application of Infrared Thermography for Online Monitoring of Wall Temperatures in Inductively Coupled Plasma Torches with Conventional and Low-Flow Gas Consumption. Spectrochim. Acta, 62(10), 1161-1168, (2007). [link]

487. Koppenaal, D.W. and Hieftje, G.M., Metallomics ­ The Future of Atomic Spectroscopy? J. Anal. At. Spec., 22(2),111, (2007). [link]

486. Hieftje, G.M., A JAAS Milestone. J. Anal. At. Spec., 22(1), 11-12, (2007). [link]

485. Webb, M.R., Andrade, F.J., and Hieftje, G.M., Use of the Electrolyte Cathode Glow Discharge (ELCAD) for the Analysis of Complex Mixtures.  J. Anal. At. Spec., 22(7), 766-774, (2007). [link]

484. Webb, M.R., Andrade, F.J., and Hieftje, G.M., The Annular Glow Discharge:  A Small-Scale Plasma for Solution Analysis. J. Anal. At. Spec., 22(7), 775-782, (2007). [link]

483. Chan, G.C.-Y. and Hieftje, G.M., Investigation of Charge Transfer with Non-Argon Gaseous Species in Mixed-Gas Inductively Coupled Plasma-Atomic Emission Spectrometry. Spectrochim. Acta, 62(3), 196-210, (2007). link]

482. Gamez, G., Ray, S.J., Andrade, F.J., Webb, M.R., and Hieftje, G.M., Development of a Pulsed Radio-Frequency Glow Discharge for Three-Dimensional Elemental Surface Imaging. I. Application to Biopolymer Analysisss. Anal. Chem.,79(4), 1317-1326, (2007). [link]

481. Gamez, G., Lehn, S.A., Huang, M., and Hieftje, G.M., Effect of Mass Spectrometric Sampling Interface on the Fundamental Parameters of an Inductively Coupled Plasma as a Function of its Operating Conditions. Part II. Central-Gas Flow Rate and Sampling Depth. Spectrochim. Acta, 62(4), 370-377, (2007). [link]

480. Gamez, G., Lehn, S.A., Huang, M., and Hieftje, G.M., Effect of Mass Spectrometric Sampling Interface on the Fundamental Parameters of an Inductively Coupled Plasma as a Function of its Operating Conditions. Part I. Applied RF Power and Vacuum. Spectrochim. Acta, 62(4), 357-369, (2007). [link]

479. Webb, M.R., Hoffmann, V., and Hieftje, G.M., Surface Elemental Mapping Using Glow Discharge - Optical Emission Spectroscopy. Spectrochim. Acta Part B, 61(12), 1279-1284, (2006). [link]

478. Wetzel, W.C., Shelby, D.E., and Hieftje, G.M., Overcoming Interferences in Inductively Coupled Plasma Mass Spectrometry via Gas-Flow Modulation: Part 2 ­ Correlation Methods. J. Anal. At. Spec., 21(12), 1377-1386, (2006).nk]

477. Wetzel, W.C. and Hieftje, G.M., Overcoming Interferences in Inductively Coupled Plasma Mass Spectrometry via Gas-Flow Modulation: Part 1 ­ Fourier Transform Methods. J. Anal. At. Spec., 21(12), 1367-1376, (2006).[link]

476. Wetzel, W.C., Andrade, F.J., Broekaert, J.A.C., and Hieftje, G.M., Development of a Direct Current He Atmospheric-Pressure Glow Discharge as an Ionization Source for Elemental Mass Spectrometry via Hydride Generation. J. Anal. At. Spec., 21(8), 750 - 756, (2006). [link]

475. Andrade, F.J., Wetzel, W.C., Chan, G.C.-Y., Webb, M.R., Gamez, G., Ray, S.J., and Hieftje, G.M., A New, Versatile Direct-Current Helium Atmospheric-Pressure Glow Discharge. J. Anal. At. Spec., 21(11), 117-1184, (2006). [l

474. Hieftje, G.M., Howard Malmstadt - Toward the Ideal. Spectrochim. Acta Part B, 61(6), 597-598, (2006). [link]

473. Hieftje, G.M., Emergence and Impact of Alternative Sources and Mass Analyzers in Plasma Source Mass Spectrometry. J. Anal. At. Spec., 23(5), 661-672, (2008). [l

472. Hieftje, G.M., A JAAS Milestone. J. Anal. At. Spec., 21(1), 11-12, (2006). [link]

471. Webb, M.R., Chan, G.C.-Y., Andrade, F.J., Gamez, G., and Hieftje, G.M., Spectroscopic Characterization of Ion and Electron Populations in a Solution-Cathode Glow Discharge. J. Anal. At. Spec., 21(5), 525-530, (2006). [link]

470. Peschel, B.U., Andrade, F. J., Wetzel, W.C., Schilling, G.D., Hieftje, G.M., Broekaert, J.A.C., Sperline, R., Denton, M.B., Barinaga, C.J., and Koppenaal, D.W., Electrothermal Vaporization Coupled with Inductively Coupled Plasma Array-Detector Mass Spectrometry for the Multielement Analysis of Al2O3 Ceramic Powders. Spectrochim. Acta, Spectrochim. Acta, 61B(1), 42-49, (2006). [link]

469. Schilling, G.D., Andrade, F.J., Barnes IV, J.H., Sperline, R.P., Denton, M.B., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Characterization of a Second-Generation Focal-Plane Camera Coupled to an Inductively Coupled Plasma Mattauch-Herzog Geometry Mass Spectrograph. Anal. Chem., 78(13), 4319-4325, (2005). [link]

468. Szumlas, A.W. and Hieftje, G.M., Phase-Resolved Detection in Ion Mobility Spectrometry. Anal. Chim. Acta, 566(1), 45-54, (2005). [link]

467. Szumlas, A.W., Ray, S.J., and Hieftje, G.M., Hadamard Transform Ion Mobility Spectrometry. Anal. Chem., 78(13), 4474-4481, (2006). [link]

466. Gamez, G., Bogaerts, A., and Hieftje, G.M., Temporal and Spatially Resolved Laser-Scattering Plasma Diagnostics for the Characterization of a MS-Pulsed Glow Discharge.  J. Anal. At. Spec., 21(3), 350-359, (2006). [link]

465. Gamez, G., Danielson, T.L., and Hieftje, G.M., Miniature, Modular Spectrometers for Flame Spectrometry in the Undergraduate Chemistry Laboratory.  J. Chem. Ed., Internal Paper,  (2005).  

464. Chan, G.C.-Y. and Hieftje, G.M., Investigation of Plasma-Related Matrix Effects in Inductively Coupled Plasma-Atomic Emission Spectrometry Caused by Matrices with Low Second Ionization Potentials - Identification of the Secondary Factor. Spectrochim. Acta Part B, 61(6), 642-659, (2006). [link]

463. Koppenaal, D.W., Barinaga, C.J., Denton, M.B., Sperline, R., Hieftje, G.M., Schilling, G.D., and Andrade, F.J., MS Detectors. Anal. Chem., 77(21), 419A-427A, (2005). [link]

462. Szumlas, A.W., Rogers, D.A., and Hieftje, G.M., Design and Construction of a Mechanically Simple, Interdigitated-Wire Ion Gate. Rev. Sci. Instru., 76(8), 086108, (2005). [link]

461. Hieftje, G.M., New faces, old friends. J. Anal. At. Spec., 20(4), 253-254, (2005). [link]

460. Sperline, R.P., Knight, A.K., Denton, M.B., Koppenaal, D.W., and Hieftje, G.M., Read-Noise Characterization of Focal Plane Array Detectors via Mean-Variance Analysis. Appl. Spec., 59(11), 1315-1323, (2005). [link]

459. Webb, M.R., Andrade, F.J., Gamez, G., McCrindle, R., and Hieftje, G.M., Spectroscopic and Electrical Studies of a Solution-Cathode Glow Discharge. J. Anal. At. Spec., 20(11), 1218 - 1225, (2005). [link]

458. Webb, M.R. and Hieftje, G.M., An Improved Monochromatic Imaging Spectrometer. Appl. Spec., 60(1), 57-60, (2006). [link]

457. Chan, G.C.-Y. and Hieftje, G.M., A LabVIEW Program for Determining Confidence Intervals of Abel-inverted Radial Emission Profiles. Spectrochim. Acta Electronica, 60(11), 1486-1501, (2005). [link]

456. McClenathan, D.M. and Hieftje, G.M., Use of Rapid Gas-Flow Modulation for Improved Performance in Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. J. Anal. At. Spec., 20(12), 1318-1325, (2005). [link]

455. Chan, G.C.-Y. and Hieftje, G.M., Estimation of Confidence Intervals for Radial Emissivity and Revisitation of Data Treatment Techniques in Abel Inversion. Spectrochim. Acta, Part B, 61(1), 31-41, (2006). [link]

454. McClenathan, D.M. and Hieftje, G.M., Absolute Methods of Quantitation in Glow Discharge Mass Spectrometry with a Time-of-Flight Mass Analyzer. J. Anal. At. Spec., 20(12), 1326-1331, (2005). [link]

453. McClenathan, D.M., Wetzel, W.C., Lorge, S.E., and Hieftje, G.M., Effect of the Plasma Operating Frequency on the Figures of Merit of an Inductively Coupled Plasma Time-of-Flight Mass Spectrometer. J. Anal. At. Spec., 21(2), 160-167, (2006). [link]

452. McClenathan, D.M., Alexander, A., Poehlman, J., and Hieftje, G.M., An Improved Directly Digital Flow Controller. Anal. Chem., 77(3), 948-951, (2005). [link]

451. Hieftje, G.M., Reminiscences of ICP-AES and ICP-MS. ICP Info. Newsl., 30th Anniversary Feature, 30(3), 216-218, (2004).

450. Wetzel, W.C., Broekaert, J.A.C., and Hieftje, G.M., A Contribution to the Study of Cooling a Vertical-Rotary Spray Chamber in Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. J. Anal. At. Spec., J. Anal. At. Spec., 20(7), 621-625, (2005). [link]

449. Andrade, F.J., Ray, S.J., and Hieftje, G.M., Handbook of Spectroscopy (Book Review). J. Anal. At. Spec., 19(4), 13N-14N, (2004). [link]

448. Ray, S.J., Andrade, F., Gamez, G., McClenathan, D., Rogers, D., Schilling, G., Wetzel, W., and Hieftje, G.M., Plasma-Source Mass Spectrometry for Speciation Analysis: State-of-the-Art. J. Chromatogr. A, 1050(1), 3-34, (2004).k]

447. Crouch, S.R., Enke, C.G., Walters, J.P., and Hieftje, G.M., Our Remembrances of Howard Malmstadt. Appl. Spec., 58(6), 165A-172A, (2004). [link]

446. Barnes IV, J.H. and Hieftje, G.M., Recent Advances in Detector-Array Technology for Mass Spectrometry. Int. J. Mass Spectrom., 238(1), 33-46, (2004). [link]

445. Barnes IV, J.H., Grøn, O.A., and Hieftje, G.M., Determination of Ca+ and K+ by Pulsed Glow Discharge Sector-Field Mass Spectrometry. J. Anal. At. Spec., 19(12), 1564-1566, (2004). [link]

444. Barnes IV, J.H., Schilling, G.D., Stone, S.F., Sperline, R.P., Denton, M.B., Young, E.T., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Simultaneous Multichannel Mass-Specific Detection for High-Performance Liquid Chromatography Using an Array Detector Sector-Field Mass Spectrometer. Anal. Bioanal. Chem., 380(2), 227-234, (2004). [link]

443. Chan, G.C.-Y. and Hieftje, G.M., Experimental Evidence of State-Selective Charge Transfer in Inductively Coupled Plasma-Atomic Emission Spectrometry. Spectrochim. Acta, Part B, 59(7), 1007-1020, (2004). [link]

442. Barnes IV, J.H., Schilling, G.D., Sperline, R.P., Denton, M.B., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Use of a Novel Array Detector for the Direct Analysis of Solid Samples by Laser Ablation Inductively Coupled Plasma Sector-Field Mass Spectrometry. J. Am. Soc. for Mass. Spectrom., 15(6), 769-776, (2004). [link]

441. Bogaerts, A., Gijbels, R., Gamez, G., and Hieftje, G.M., Fundamental Studies on a Planar-Cathode Direct Current Glow Discharge Part II:  Numerical Modeling and Comparison with Laser Scattering Experiments. Spectrochim. Acta, Part B, 59(4), 449-460, (2004). [link]

440. Gamez, G., Bogaerts, A., Andrade, F., and Hieftje, G.M., Fundamental Studies on a Planar-Cathode Direct Current Glow Discharge Part I:  Characterization via Laser Scattering Techniques. Spectrochim. Acta, Part B, 59(4), 435-447, (2004). [link]

439. McClenathan, D.M., Ray, S.J., Wetzel, W.C., and Hieftje, G.M., Plasma Source TOFMS. Anal. Chem., 76(9), 159A-166A, (2004).

438. Barnes IV, J.H., Schilling, G.D., Sperline, R., Denton, M.B., Young, E.T., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Coupling of a Gas Chromatograph to a Simultaneous-Detection Inductively Coupled Plasma Mass Spectrograph for Speciation of Organohalide and Organometallic Compounds. J. Anal. At. Spec., 19(6), 751-756, (2004).  

437.  Barnes IV, J.H., Schilling, G.D., Sperline, R., Denton, M.B., Young, E.T., Barinaga, C.J., Koppenaal, D.W., and Hieftje, G.M., Characterization of a Focal Plane Camera Fitted to a Mattauch-Herzog Geometry Mass Spectrograph.  II.  Use with an Inductively Coupled Plasma. Anal. Chem., 76(9), 2531-2536, (2004).

436. Hieftje, G.M., A Tribute to Freddy C. V. Adams on the Occasion of his Retirement. J. Anal. At. Spec., 18(9), 35N-37N, (2003).

435. Barnes IV, J.H., Hieftje, G.M., Denton, M.B., Sperline, R., Koppenaal, D.W., and Barinaga, C.J., A New Mass Spectrometry Detector Array Capable of Truly Simultaneous Detection. American Laboratory - 35th Anniversary Edition, 35(20), 15-22, (2003).

434. Chan, G.C.-Y. and Hieftje, G.M., Using Matrix Effects as a Probe for the Study of the Charge-Transfer Mechanism in Inductively Coupled Plasma-Atomic Emission Spectrometry. Spectrochim. Acta, Part B, 59(2), 163-183, (2004).

433.  Potyrailo, R.A., Szumlas, A.W., Danielson, T.L., Johnson, M., and Hieftje, G.M., A Dual-Parameter Optical Sensor Fabricated by Gradient Axial Doping of Optical Fiber. Meas. Sci. Technol., 16(1), 235-241, (2005). [link]

432.  Rosen, A.L. and Hieftje, G.M., Inductively Coupled Plasma Mass Spectrometry and Electrospray Mass Spectrometry for Speciation Analysis:  Applications and Instrumentation. Spectrochim. Acta, Part B, 59(2), 135-146 (2004). 

431.  Barnes IV, J.H. and Hieftje, G.M., Design and Characterization of a Directly Polarized Radioluminescent Light Source. The Analyst, 129(8), 779-782, (2004).

430.  Barnes IV, J.H., Schilling, G.D., Denton, M.B., Koppenaal, D.W., and Hieftje, G.M., Development and Characterization of an Electrostatic Quadrupole Extraction Lens for Mass Spectrometry. J. Anal. At. Spec., 18(9), 1015-1018, (2003).

429.  Gamez, G., Huang, M., Lehn , S.A., and Hieftje, G.M., Laser-Scattering Instrument for Fundamental Studies on a Glow Discharge. J. Anal. At. Spec., 18(6), 680-684 (2003).

428.  Liu, K. and Hieftje, G.M., Investigation of Wavelength Calibration for an Echelle Cross-Dispersion Spectrometer. J. Anal. At. Spec., 18(10), 1177-1184, (2003).

427.  Leach, A.M. and Hieftje, G.M., Identification of Alloys using Single Shot Laser Ablation Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. J. Anal. At. Spectrom., 17, 852-857, (2002).

426.  Solyom, D.A., Barnes, J.H., Grøn, O.A., and Hieftje, G.M., Incorporation of an Electro-Optic Ion Detector into an Improved Plasma-Source Mass Spectrograph. Spectroscopy and Spectral Analysis, 22(5), 828-837, (2002).

425.  Barnes IV, J., Grøn, O.A., and Hieftje, G.M., Characterization of an Argon Microwave Plasma Torch Coupled to a Mattauch-Herzog Geometry Mass Spectrometer. J. Anal. At. Spec., 17(9), 1132 -1136, (2002).

424.  Knight, A.K., Sperline, R.P., Hieftje, G.M., Young, E., Barinaga, C.J., Koppenaal, D.W., and Denton, M.B., The Development of a Micro-Faraday Array for Ion Detection. Int. J. Mass Spectrom. Ion Proc., 215, 131-139, (2002).

423.  Lehn, S.A. and Hieftje, G.M., Experimental Evaluation of Analyte Excitation Mechanisms in the Inductively Coupled Plasma. Spectrochim. Acta, Part B, 58(10), 1821-1836, (2003).

422.  Lehn, S.A., Warner, K.A., Huang, M., and Hieftje, G.M., Effect of Sample Matrix on the Fundamental Properties of the Inductively Coupled Plasma. Spectrochim. Acta, Part B, 58(10), 1785-1806, (2003).

421.  Lehn, S.A., Huang, M., Warner, K.A., Gamez, G., and Hieftje, G.M., Spatially Resolved Ground-State Number Densities of Calcium and Strontium Ion in an Inductively Coupled Plasma in Contact with an Inductively Coupled Plasma-Mass Spectrometry Sampling Interface. Spectrochim. Acta, Part B, 58(9), 1647-1662, (2003).

420.  Hieftje, G.M., Atomic Spectroscopy - A Primer. http://www.spectroscopynow.com, (2001).

419.  Hieftje, G.M., Barnes, J.H., Grøn, O.A., Leach, A.M., McClenathan, D.M., Ray, S.J., Solyom, D.A., Wetzel, W.C., Denton, M.B., and Koppenaal, D.W., Evolution and Revolution in Instrumentation for Plasma-Source Mass Spectrometry. Pure Appl. Chem., 73(10), 1579-1588, (2001).

418.  Lehn, S., Warner, K.A., Huang, M., and Hieftje, G., Effect of an Inductively Coupled Plasma Mass Spectrometry Sampler Interface on Electron Temperature, Electron Number Density, Gas-Kinetic Temperature and Analyte Emission Intensity Upstream in the Plasma. Spectrochim. Acta, Part B, 57B(11), 1739-1751, (2002).

417.  Hieftje, G., Huang, M., Lehn, S., Warner, K., Gamez, G., Ray, S., and Leach, A., Toward a Fuller Understanding of Analytical Atomic Spectrometry. Analytical Sciences, 18(11), 1185-1189, (2002).

416.  Starn, T.K., Dearth-Monroe, L.L., Andrews, E.J., Bair, E.J., Jin, Q., and Hieftje, G.M., Thermal Imaging of Microwave Fields Inside the Surfatron and the Microwave Plasma Torch. Spectrochim. Acta, Part B, 57(2), 267-275, (2002).

415.  Wetzel, W.C., Broekaert, J.A.C., and Hieftje, G.M., Determination of Arsenic by Hydride Generation Coupled to Time-of-Flight Mass Spectrometry with a Gas Sampling Glow Discharge. Spectrochim. Acta, Part B, 57B(6), 1009-1023, (2002).

414.  Barnes IV, J.H., Sperline, R., Denton, M.B., Barinaga, C.J., Koppenaal, D., Young, E.T., and Hieftje, G.M., Characterization of a Focal Plane Camera Fitted to a Mattauch-Herzog Geometry Mass Spectrograph.  I.  Use with a Glow-Discharge Source. Anal. Chem., 74(20), 5327-5332, (2002).

413.  Solyom, D.A. and Hieftje, G.M., Advancing the Capabilities of a Glow-Discharge Sector-Field Mass Spectrometer. J. Anal. At. Spectrom., 17(4), 329-333, (2002).

412.  Solyom, D.A. and Hieftje, G., Simultaneous or Scanning Data Acquisition?  A Theoretical Comparison Relevant to Inductively Coupled Plasma Sector-Field Mass Spectrometers. J. Am. Soc. for Mass. Spectrom., 14(3), 227-235, (2003).

411.  McClenathan, D.M., Ray, S.J., and Hieftje, G.M., Novel Flow Injection Strategies for Study and Control of Matrix Interferences by Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. J. Anal. At. Spectrom., 16(9), 987-990, (2001).

410.  Solyom, D.A., Grøn, O.A., Barnes, J.H., and Hieftje, G.M., Analytical Capabilities of an Inductively Coupled Plasma Mattauch-Herzog Mass Spectrometer. Spectrochim. Acta, Part B, 56(9), 1717-1729, (2001).

409.  Leach, A.M., McClenathan, D.M., and Hieftje, G.M., Plasma Source Time-of-Flight Mass Spectrometry:  A Powerful Tool for Elemental Speciation, in Handbook of Elemental Speciation, R. Cornelis, J. Caruso, H. Crews, and K. Heumann, Editor, John Wiley & Sons Ltd. (2003), 313-333.

408.  Leach, A.M. and Hieftje, G.M., Factors Affecting the Production of Fast Transient Signals in Single Shot Laser Ablation Inductively Coupled Plasma Mass Spectrometry. Appl. Spec., 56(1), 62-69, (2002).

407.  Leach, A.M. and Hieftje, G.M., Use of an Ion Guide Collision Cell to Improve the Analytical Performance of an Inductively Coupled Plasma Time-of-Flight Mass Spectrometer. Int. J. Mass Spectrom., 212(1-3), 49-63, (2001).

406.  Ray, S.J. and Hieftje, G.M., Mass Analyzers for Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. J. Anal. At. Spectrom., 16(10), 1206-1216, (2001).

405.  Ray, S.J. and Hieftje, G.M., Microwave Plasma Torch-Atmospheric Sampling Glow Discharge Modulated Tandem Source for the Sequential Acquisition of Molecular Fragmentation and Atomic Mass Spectra. Analytica Chimica Acta, 445(1), 35-45, (2001).

404.  Hieftje, G.M., Ray, S.J., Guzowski Jr., J.P., Leach, A.M., McClenathan, D.M., Solyom, D.A., Wetzel, W.C., and Grøn, O.A., All the Ions All the Time:  Dream or Reality?, in Plasma Source Mass Spectrometry: The New Millennium, J.G. Holland and  S.D. Tanner, Editor, The Royal Society of Chemistry: Durham, England (2001), 73-89.

403.  Hieftje, G.M., Symposium Report; Laser Assisted Plasma Spectrochemistry. ICP Information Newsletter, 26(1), 31-33, (2000).

402.  Leach, A.M. and Hieftje, G.M., Standardless Semiquantitative Analysis of Metals Using Single-Shot Laser Ablation Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. Anal. Chem., 73(13), 2959-2967, (2001).

401.  Ray, S., Myers, D., Leach, A., Guzowski Jr., J., and Hieftje, G., Time-of-Flight Mass Spectrometry with Atomic Ion Sources, in Advances in Mass Spectrometry, E. Gelpi, Editor, John Wiley & Sons, Ltd:New York (2001), 61-85.

400. Warner, K. and Hieftje, G.M., Thomson Scattering from Analytical Plasmas. Spectrochimica Acta, 57(2), 201-241, (2002).

399.   Guzowski Jr., J.P. and Hieftje, G.M., Characteristics of a RF-Only Hexapole Ion-Guide Interface for Plasma-Source Time-of-Flight Mass Spectrometry. J. Anal. Atom. Spectrosc., 16(8), 781-792, (2001).

398.   Hieftje, G.M., The Science of Instrumentation and Measurements. Anal. Chem., 72(9), 309A, (2000).

397.   Guzowski Jr., J.P. and Hieftje, G.M., Gas Sampling Glow Discharge:  A Versatile Ionization Source for Gas Chromatography Time-of-Flight Mass Spectrometry. Anal. Chem., 72(16), 3812-3820, (2000).

396.   Guzowski Jr., J.P., Broekaert, J.A.C., and Hieftje, G.M., Electrothermal Vaporization for Sample Introduction into a Gas Sampling Glow Discharge Time-of-Flight Mass Spectrometer. Spectrochim. Acta, Part B, 55B(8), 1295-1314, (2000).

395.   Leach, A.M. and Hieftje, G.M., Methods for Shot-to-Shot Normalization in Laser Ablation with an Inductively Coupled Plasma Time-of-Flight Mass Spectrometer. J. Anal. At. Spectrom., 15(9), 1121-1124, (2000).

394.   Myers, D.P., Ray, S.J., and Hieftje, G.M., Inorganic Time-of-Flight Mass Spectrometry, in Inorganic Mass Spectrometry:  Fundamentals and Applications, C.M. Barshick, D.C. Duckworth, and D.H. Smith, Editor, Marcel Dekker, Inc.:  New York (2000), 447-505.

393.   Hieftje, G.M., Atomic Spectrometry - Is the End Near? Appl. Spectrosc., 54(3), 88A-89A, (2000).

392.   Hieftje, G.M., Atomic Spectroscopy:  Introduction, in Encyclopedia of Analytical Chemistry:  Instrumentation and Applications, R.A. Meyers, Editor, John Wiley & Sons, Ltd.: Sussex, United Kingdom (2000), 9357-9361.

391.   Huang, M., Warner, K., Lehn, S., and Hieftje, G.M., A Simple Approach to Deriving an Electron Energy Distribution from an Incoherent Thomson Scattering Spectrum. Spectrochim. Acta, Part B, 55B(9), 1397-1410, (2000).

390.   Costa-Fernández, J.M., Bings, N.H., Leach, A.M., and Hieftje, G.M., Rapid Simultaneous Multielemental Speciation by Capillary Electrophoresis Coupled to Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. J. Anal. At. Spectrom., 15(9), 1063-1067, (2000).

389.   Potyrailo, R.A. and Hieftje, G.M., Advanced Strategies For Spatially Resolved Analyte Mapping With Distributed Fiber-Optic Sensors For Environmental And Process Applications. Proc. SPIE-Int. Soc. Opt. Eng., 3534, 49-62, (1999).

388.   Lee, G.H., Kil, H.S., Kim, H.S., and Hieftje, G.M., The Fundamental Studies Of The New Glow Discharge/Inductively Coupled Plasma Interface: Part I. Preliminary Studies. J. Korean Chem. Soc., 43, 182-192, (1999).

387.   Hieftje, G.M., Alternatives in Plasma-Source Mass Spectrometry:  Evolution or Revolution? J. Anal. At. Spectrom., 14(8), 51N-52N, (1999).

386.   Bings, N.H., Costa Fernández, J., Guzowski Jr., J.P., Leach, A.M., and Hieftje, G.M., Time-of-Flight Mass Spectrometry as a Tool for Speciation Analysis. Spectrochim. Acta, Part B, 55B(7), 767-778, (2000).

385.   Hieftje, G.M., Atomic Emission Spectroscopy - It Lasts and Lasts and Lasts. J. Chem. Educ., 77(5), 577-583, (2000).

384.   Guzowski Jr., J.P. and Hieftje, G.M., Characterization of Switched Direct Current Gas Sampling Glow Discharge Ionization Source for the Time-of-Flight Mass Spectrometer. J. Anal. Atom. Spectrom., 15, 27-36, (2000).

383.   Leach, A.M., Potyrailo, R.A., and Hieftje, G.M., Design and Characterization of a Radioluminescent Temperature Sensor. Anal. Chim. Acta, 412, 47-53, (2000).

382.   Leach, A.M., Heisterkamp, M., Adams, F.C., and Hieftje, G.M., Gas Chromatography Inductively Coupled Plasma Time-of-Flight Mass Spectrometry for the Speciation Analysis of Organometallic Compounds. J. Anal. Atom. Spectrosc., 15, 151-155, (2000).

381.   Guzowski Jr., J.P., Broekaert, J.A.C., Ray, S.J., and Hieftje, G.M., Development of a Direct Current Gas Sampling Glow Discharge Ionization Source for the Time-of-Flight Mass Spectrometer. J. Anal. Atom. Spectrosc., 14(8), 1121-1127, (1999).

380.   Leach, A.M., Burden, D.L., and Hieftje, G.M., Radioluminescence Detector for the Flow Injection Determination of Phosphorus as Vanadomolybdophosphoric Acid. Anal. Chim. Acta, 402, 267-274, (1999).

379.   Solyom, D.A., Burgoyne, T.W., and Hieftje, G.M., Plasma-Source Sector Mass Spectrometry with Array Detection. J. Anal. Atom. Spectrom., 14(8), 1101-1110, (1999).

378.   Engel, U., Prokisch, C., Voges, E., Hieftje, G.M., and Broekaert, J.A.C., Spatially Resolved Measurements and Plasma Tomography with Respect to the Rotational Temperatures for a Microwave Plasma Torch. J. Anal. Atom. Spectrom., 13, 955-961, (1998).

377.   Poehlman, J.P., Pack, B.W., and Hieftje, G.M., Heated Transfer Line for Coupling Gas Chromatography with Plasma Source Spectrometry. American Laboratory, 30th Anniversary Issue(21), 50C-53C, (1998).

376.   Potyrailo, R.A. and Hieftje, G.M., Spatially Resolved Analyte Mapping with Time-of-flight Optical Sensors. Trends Anal. Chem., 17(10), 593-604, (1998).

375.   Potyrailo, R.A., Conrad, R.C., Ellington, A.D., and Hieftje, G.M., Adapting Selected Nucleic Acid Ligands (Aptamers) to Biosensors. Anal. Chem., 70, 3419-3425, (1998).

374.   Potyrailo, R.A., Hobbs, S.E., and Hieftje, G.M., Optical Waveguide Sensors in Analytical Chemistry:  Today's Instrumentation, Applications and Trends for Future Development. Fres. J. Anal. Chem., 362, 349-373, (1998).

373.   Burden, D.L. and Hieftje, G.M., Cerenkov Radiation as a UV and Visible Light Source for Time-Resolved Fluorescence. Anal. Chem., 70, 3426-3433, (1998).

372.   Potyrailo, R.A. and Hieftje, G.M., Oxygen Detection by Fluorescence Quenching of Tetraphenylporphyrin Immobilized in the Original Cladding of an Optical Fiber. Anal. Chim. Acta, 370(1), 1-8, (1998).

371.   Potyrailo, R.A., Ruddy, V.P., and Hieftje, G.M., Use of Analyte-Modulated Modal Power Distribution in Multimode Optical Fibers for Simultaneous Single-Wavelength Evanescent-Wave Refractometry and Spectrometry. Anal. Chem., 71, 4956-4964, (1999).

370.   Potyrailo, R.A. and Hieftje, G.M., Use of the Original Silicone Cladding of an Optical Fiber as a Reagent-Immobilization Medium for Intrinsic Chemical Sensors. Fres. J. Anal. Chem., 364(1/2), 32-40, (1999).

369.   Potyrailo, R.A. and Hieftje, G.M., Optical Time-of-Flight Chemical Detection (OTOF-CD):  Absorption-Modulated Fluorescence for Spatially Resolved Analyte Mapping in a Bidirectional Distributed Fiber-Optic Sensor. Anal. Chem., 70, 3407-3412, (1998).

368.   Burden, D.L. and Hieftje, G.M., Comparison of Digital Correlation Techniques in Time-Resolved Fluorometry Using a Radionuclide-Scintillation Excitation Source. Rev. Sci. Instru., 70, 50-57, (1999).

367.   Potyrailo, R.A. and Hieftje, G.M., Optical Time-of-Flight Chemical Detection (OTOF-CD):  Spatially Resolved Analyte Mapping with Extended-Length Continuous Chemically Modified Optical Fibers. Anal. Chem., 70(8), 1453-1461, (1998).

366.   Burden, D.L. and Hieftje, G.M., Digital Cross-Correlation Technique for Fluorescence-Lifetime Measurement Using a Radionuclide-Scintillation Excitation Source. Rev. Sci. Instru., 69(4), 1595-1604, (1998).

365.   Broekaert, J.A.C., Starn, T.K., Wright, L.J., and Hieftje, G.M., Studies of a Helium-Operated Gas-Sampling Grimm-Type Glow Discharge for the Atomic Emission Spectrometric Determination of Chlorine in Halogenated Hydrocarbon Vapors. Spectrochim. Acta, Part B, 53B(12), 1723-1735, (1998).

364.   Horner, J.A. and Hieftje, G.M., Computerized Simulation Of Mixed-Solute Particle Vaporization in an Inductively Coupled  Plasma. Spectrochim. Acta, Part B, 53B(Chakrabarti Special Issue), 1235-1259, (1998). [link]

363.   Horner, J.A. and Hieftje, G.M., Characterization of 22-mm Torch for ICP-AES. Appl. Spectrosc., 53(6), 713-718, (1999).

362.   Horner, J.A., Yang, P., and Hieftje, G.M., Effect of Operating Frequency on Spatial Features of the Inductively Coupled Plasma. Appl. Spectrosc., 54(12), 1824-1830, (2000).

361.   Yang, P., Horner, J.A., Sesi, N.N., and Hieftje, G.M., Comparison of Simulated and Experimental Fundamental ICP Parameters. Spectrochim. Acta, Part B, 55B(12), 1833-1845, (2000).

360.   Horner, J.A., Lehn S. A., and Hieftje, G.M., Computerized Simulation of Aerosol-Droplet Desolvation in an ICP. Spectrochim. Acta, Part B, 57B(6), 1025-1042, (2002).

359. Horner, J.A., Chan, G.C.-Y., Lehn, S.A., and Hieftje, G.M., Computerized Simulation of Solute-Particle Vaporization in an Inductively Coupled Plasma. Spectrochim. Acta, 63B, 217-233, (2008).

358.   Potyrailo, R.A., Hobbs, S.E., and Hieftje, G.M., Near-Ultraviolet Evanescent-Wave Absorption Sensor Based on Multimode Optical Fibers. Anal. Chem., 70(8), 1639-1645, (1998).

357.   Potyrailo, R.A., Hobbs, S.E., and Hieftje, G.M., A Simple, Highly Stable Scintillator Light Source for Ultraviolet Absorption-Based Sensors. Anal. Chim. Acta, 367(1-3), 153-157, (1998).

356.   Potyrailo, R.A. and Hieftje, G.M., Distributed Fiber-Optic Chemical Sensor with Chemically-Modified Plastic Cladding. Appl. Spectrosc., 52(8), 1092-1095, (1998).

355.   Pack, B.W., Ray, S.J., Potyrailo, R.A., and Hieftje, G.M., Evaluation of Ultrasonic Nebulization for the Analysis of Transient Samples:  Theoretical and Practical Considerations. Appl. Spectrosc., 52(12), 1515-1521, (1998).

354.   Pack, B.W., Hieftje, G.M., and Jin, Q.J., Use of an Air/Argon Microwave Plasma Torch for the Detection of Tetraethyllead. Anal. Chim. Acta, 383(3), 231-241, (1999).

353.   Pack, B.W., Broekaert, J.A.C., Guzowski Jr., J.P., Poehlman, J., and Hieftje, G.M., Determination of Halogenated Hydrocarbons by Helium Microwave Plasma Torch Time-of-Flight Mass Spectrometry Coupled to Gas Chromatography. Anal. Chem., 70(18), 3957-3963, (1998).

352.   Pack, B.W. and Hieftje, G.M., Inductively Coupled Plasma-Microwave Induced Plasma Tandem Source for Atomic Emission Spectroscopy. Appl. Spectrosc., 54(1), 80-88, (2000).

351.   Pack, B.W. and Hieftje, G.M., An Improved Microwave Plasma Torch for Atomic Spectrometry. Spectrochim. Acta, Part B, 52B(14), 2163-2168, (1997).

350. Hieftje, G.M., 12th Asilomar Conference on Mass Spectrometry (ACMS). J. Am. Soc. Mass Spectrom., 8, 673-674, (1997).

349.   Hieftje, G.M., Speciation in Atomic Spectrometry - An Oxymoron? Spectrochim. Acta, Part B, 53B, 165-167, (1998).

348.   Huang, M., Lehn, S.A., Andrews, E.J., and Hieftje, G.M., Comparison of Electron Concentrations, Electron Temperatures, Gas-Kinetic Temperatures, and Excitation Temperatures in Argon ICPs Operated at 27 and 40 MHz. Spectrochim. Acta, Part B, 52B(8), 1173-1193, (1997).

347.   Hobbs, S.E., Potyrailo, R.A., and Hieftje, G.M., Scintillator Light Source for Chemical Sensing in the Near-Ultraviolet. Anal. Chem., 69(16), 3375-3379, (1997).

346.   Burden, D.L., Hobbs, S.E., and Hieftje, G.M., Fluorescence Lifetime Measurement via a Radionuclide-Scintillation Light Source and Analog Cross Correlation. Anal. Chem., 69(10), 1936-1941, (1997).

345.   Burgoyne, T.W. and Hieftje, G.M., An Introduction to Ion Optics for the Mass Spectrograph. Mass Spec. Reviews, 15(4), 241-259, (1996).

344.   Mahoney, P.P., Ray, S.J., and Hieftje, G.M., Time-of-Flight Mass Spectrometry for Elemental Analysis. Appl. Spectrosc., 51(1), 16A-28A, (1997).

343.   Hieftje, G.M., Laser Assisted Plasma Spectrometry. ICP Info. Newslett., 22(1), 1-3, (1996).

342.   Hieftje, G.M., Myers, D.P., Li, G., Mahoney, P.P., Burgoyne, T.W., Ray, S.J., and Guzowski Jr., J.P., Toward the Next Generation of Atomic Mass Spectrometers. J. Anal. Atom. Spectrom., 12(3), 287-292, (1997). Also 8th Biennial National Atomic Spectroscopy Symposium, University of East Anglia, Norwich, United Kingdom, July 17-19, 1996.

341.   Burgoyne, T.W., Hieftje, G.M., and Hites, R.A., Design and Performance of a Plasma-Source Mass Spectrograph. J. Am. Soc. Mass Spectrom., 8(4), 307-318, (1997).

340.   Burgoyne, T.W., Hieftje, G.M., and Hites, R.A., Reducing the Energy Distribution in a Plasma-Source Sector-Field Mass Spectrometer Interface. J. Anal. Atom. Spectrosc., 12(10), 1149-1153, (1997).

339.   Burgoyne, T.W., Hieftje, G.M., and Hites, R.A., Space Charge Evaluation in a Plasma-Source Mass Spectrograph. Anal. Chem., 69(3), 485-489, (1997).

338.   Mahoney, P.P., Ray, S.J., Li, G., and Hieftje, G.M., Preliminary Investigations of Electrothermal Vaporization Sample Introduction for Inductively Coupled Plasma-Time-of-Flight Mass Spectrometry. Anal. Chem., 71, 1378-1383, (1999).

337.   Mahoney, P.P., Ray, S.J., Li, G., and Hieftje, G.M., Continuum Background Reduction in Orthogonal-Acceleration Time-of-Flight Mass Spectrometry with Continuous Ion Sources. J. Am. Soc. Mass Spectrom., 8(2), 125-131, (1997).

336.   Mahoney, P.P., Guzowski Jr., J.P., Ray, S.J., and Hieftje, G.M., Electrospray Ionization Time-of-Flight Mass Spectrometer for Elemental Analysis. Appl. Spectrosc., 51(10), 1464-1470, (1997).

335.   Sesi, N.N. and Hieftje, G.M., Studies into the Interelement Matrix Effect in Inductively Coupled Plasma Spectrometry. Spectrochim. Acta, Part B, 51B(13), 1601-1628, (1996).

334.   Sesi, N.N., Hanselman, D.S., Galley, P., Horner, J., Huang, M., and Hieftje, G.M., An Imaging-Based Instrument for Fundamental Plasma Studies. Spectrochim. Acta, Part B, 52B(1), 83-102, (1997).

333.   Sesi, N.N., Borer, M.W., Starn, T.K., and Hieftje, G.M., A Standardized Approach to Collect and Calculate Noise Amplitude Spectra. J. Chem. Ed., 75(6), 788-792, (1998).

332.   Hieftje, G.M., The Future of Plasma Spectrochemical Instrumentation. J. Anal. At. Spectrom., 11(9), 613-621, (1996). Also 1996 Winter Conference on Plasma Chemistry, Ft. Lauderdale, FL, January 8-13, 1996.

331.   MacDonald, S.A. and Hieftje, G.M., Use of Shift Reagents to Determine Enantiomers by Near-Infrared Analysis. Appl. Spectrosc., 50(9), 1161-1164, (1996).

330.   Potyrailo, R.A., Ruddy, V.P., and Hieftje, G.M., Kramers-Kronig Analysis of Molecular Evanescent-Wave Absorption Spectra Obtained by Multimode Step-Index Optical Fibers. Appl. Opt., 35(21), 4102-4111, (1996).

329.   Mahoney, P.P., Li, G., and Hieftje, G.M., Laser Ablation-Inductively Coupled Plasma Mass Spectrometry with a Time-of-Flight Mass Analyzer. J. Anal. At. Spectrom., 11, 401-405, (1996).

328.   Ohlsson, K.E.A. and Hieftje, G.M., Atomization of Carbon Containing Species in the Inductively Coupled Plasma. Spectrochim. Acta, Part B, 50B(14), 1805-1822, (1995).

327.   Kantor, T. and Hieftje, G.M., "Tandem" versus "Combined" Sources in Atomic Spectrometry. Spectrochim. Acta, Part B, 50B(9), 961-962, (1995).

326.   Li, G., Duan, Y., and Hieftje, G.M., Space-Charge Effects and Ion Distribution in Plasma Source Mass Spectrometry. J. Mass Spectrom., 30, 841-848, (1995).

325.   Fischer, M.R. and Hieftje, G.M., Near-IR Multiplex Bandpass Spectrometer Utilizing Polymer Filters. Appl. Spectrosc., 50(10), 1246-1252, (1996).

324.   Heintz, M.J. and Hieftje, G.M., Langmuir-Probe Measurements of a Pulsed and Steady-state RF Glow-Discharge Source and of an RF Planar-Magnetron Source. Spectrochim. Acta, Part B, 51B(13), 1629-1646, (1996).

323.   Heintz, M.J., Myers, D.P., Mahoney, P.P., Li, G., and Hieftje, G.M., Radio-Frequency-Powered Planar-Magnetron Glow Discharge as a Source for Time-of-Flight Elemental Mass Spectrometry. Appl. Spectrosc., 49(7), 945-954, (1995).

322.   Heintz, M.J., Broekaert, J.A.C., and Hieftje, G.M., Analytical Characterization of a Planar Magnetron RF Glow Discharge Source. Spectrochim. Acta, Part B, 52B, 579-291, (1997).

321.   Duan, Y., Wu, M., Jin, Q., and Hieftje, G.M., Vapor-Generation Assisted Nebulization for Nonmetal Determination. Spectrochim. Acta, Part B, 50B(9), 971-974, (1995).

320.   Myers, D.P., Mahoney, P.P., Li, G., and Hieftje, G.M., Isotope Ratios and Abundance Sensitivity Obtained with an Inductively Coupled Plasma-Time-of-Flight Mass Spectrometer. J. Amer. Soc. Mass. Spec., 6(10), 920-927, (1995).

319.   Myers, D.P., Li, G., Mahoney, P.P., and Hieftje, G.M., An Inductively Coupled Plasma - Time-of-Flight Mass Spectrometer (ICP-TOFMS) for Elemental Analysis.  Part III:  Analytical Performance of the TOFMS with Improved Ion Optics and Vacuum Chamber. J. Amer. Soc. Mass. Spec., 6(5), 411-420, (1995).

318.   Myers, D.P., Li, G., Mahoney, P.P., and Hieftje, G.M., An Inductively Coupled Plasma - Time-of-Flight Mass Spectrometer (ICP-TOFMS) for Elemental Analysis.  Part II:  DC Quadrupole Lens System for Improved Performance. J. Am. Soc. Mass. Spectrom., 6(5), 400-410, (1995).

317.   Fong, A. and Hieftje, G.M., Simple Near-Infrared Spectrometric Sorption-Based Vapor Sensor. Appl. Spectrosc., 49(9), 1261-1267, (1995).

316.   Heintz, M.J. and Hieftje, G.M., Design and Characterization of a Planar Magnetron Radio-Frequency Glow Discharge Source for Atomic Emission Spectrometry. Spectrochim. Acta, Part B, 50B(9), 1109-1124, (1995).

315.   Yang, P., Myers, D.P., Li, G., and Hieftje, G.M., Constant Fraction Discrimination-Boxcar Integrator for Plasma Source Time-of-Flight Mass Spectrometry. Appl. Spec., 49(5), 660-664, (1995).

314.   Heintz, M.J. and Hieftje, G.M., Effect of Driving Frequency on the Operation of a Radio-Frequency Glow Discharge Emission Source. Spectrochim. Acta, Part B, 50B(9), 1125-1141, (1995).

313.   Fong, A. and Hieftje, G.M., Near-IR Multiplex Bandpass Spectrometer Utilizing Liquid Molecular Filters. Appl. Spectrosc., 49(4), 493-498, (1995).

312.   Fong, A. and Hieftje, G.M., Near-Infrared Measurement of Relative and Absolute Humidity Through Detection of Water Adsorbed on a Silica-Gel Layer. Anal. Chem., 67(6), 1139-1146, (1995).

311.   Fong, A. and Hieftje, G.M., Low-Volume Diffuse-Transmittance Fiber Optic Near-IR Spectrophotometer. Appl. Spectrosc., 49(4), 486-492, (1995).

310.   Heintz, M.J., Mifflin, K., Broekaert, J.A.C., and Hieftje, G.M., Investigations of a Magnetically Enhanced Grimm-Type Glow Discharge Source. Appl. Spectrosc., 49(2), 241-246, (1995).

309.   Myers, D.P., Heintz, M.J., Mahoney, P.P., Li, G., and Hieftje, G.M., Characterization of a Radio Frequency Glow Discharge-Time-of-Flight Mass Spectrometer. Appl. Spectrosc., 48(11), 1337-1346, (1994).

308.   Sesi, N.N., Mac Kenzie, A., Shanks, K.E., Yang, P., and Hieftje, G.M., Fundamental Studies of Mixed-Gas Inductively Coupled Plasmas. Spectrochim. Acta, Part B, 49B(12-14), 1259-1282, (1994).

307.   Hobbs, S.E. and Hieftje, G.M., Scintillator-Based Nanosecond Light Sources for Time-Resolved Fluorimetry. Appl. Spectrosc., 49(1), 15-19, (1995).

306.   Crouzillat, G., Drouet, M.G., Efthimion, P.C., Funfschilling, M.R., Heberlein, J., Hieftje, G.M., Olesik, J., Santen, S., Bonizzoni, G., and Pitea, D. Plasma Technologies for Hazardous Waste Treatment and Materials Reclamation:  Present Status, Research Needs, and Comparison with Competitive Processes in International Workshop on Plasma Technologies for Hazardous Waste Destruction, Como, Italy, September 12-15. (1992).

305.   Hieftje, G.M., Hanselman, D.S., Mahoney, P.P., Sesi, N.N., Shanks, K.E., Hobbs, S.E., and Burden, D.L., Lasers for Plasma Diagnostics, Time Resolved Measurement and Molecular Fluorometry in Analytical Science. Mikrochim. Acta, 120, 3-19, (1995). Also 13th International Symposium on Microchemical Techniques, Montreux, Switzerland, May 16-20, 1994.

304.   Hieftje, G.M., Comments on the Winter Conference and Plasma Source Mass Spectrometry Fundamentals. ICP Info. Newsl., 20(1), 5-11, (1994).

303.   Jin, Q., Huang, M., and Hieftje, G.M., Microwave Plasma Atomic Spectrometry (in Chinese). 1st ed. (1993), Jilin, China: Jilin University Press.

302.   Heintz, M.J., Galley, P.J., and Hieftje, G.M., Emission Features of a Conventional RF Glow Discharge Source and a Magnetically-Enhanced Source. Spectrochim. Acta, Part B, 49B(8), 745-759, (1994).

301.   Madrid, Y., Borer, M.W., Zhu, C., Jin, Q., and Hieftje, G.M., Noise Characterization of the Microwave Plasma Torch (MPT) Source. Appl. Spectrosc., 48(8), 994-1002, (1994).

300. Duan, Y., Wu, M., Jin, Q., and Hieftje, G.M., Vapor Generation of Nonmetals Coupled to Microwave Plasma-Torch Mass Spectrometry. Spectrochim. Acta, Part B, 50B(9), 1095-1108, (1995).

299.   Starn, T.K., Sesi, N.N., Horner, J.A., and Hieftje, G.M., A LabVIEWâ Program for Determining Electron Number Density from Stark Broadening Measurements of the Hydrogen-Beta Line. Spectrochim. Acta, Part B, 50B(9), 1147-1158, (1995).

298.   Starn, T.K. and Hieftje, G.M., Gopher:  A Unidirectional Means of Distributing Spectrochemical Resources. Spectrochim. Acta, Part B, 49B(5), 533-534, (1994).

297.   Myers, D.P., Li, G., Yang, P., and Hieftje, G.M., An Inductively Coupled Plasma-Time-of-Flight Mass Spectrometer (ICP-TOFMS) for Elemental Analysis.  Part I:  Optimization and Characteristics. J. Am. Soc. for Mass. Spectrom., 5(11), 1008-1016, (1994).

296.   Mahoney, P.P. and Hieftje, G.M., Fluorimetric Analysis on Individual Nanoliter Sample Droplets. Appl. Spectrosc., 48(8), 956-958, (1994).

295.   Hieftje, G.M. and Tolg, G., The Henrich-Emanuel-Merck-Prize - A Testimony to the Youth and Vigour of Analytical Chemistry. Fres. J. Anal. Chem., 348, 181, (1994).

294.   Hieftje, G.M., But Is It Analytical Chemistry? Amer. Lab. - 25th Anniversary Edition, 25(16), 53-61, (1993).

293.   Wu, M. and Hieftje, G.M., The Effect of Easily Ionized Elements on Analyte Emission Efficiency in Inductively Coupled Plasma Spectrometry. Spectrochim. Acta, Part B, 49B(2), 149-161, (1994).

292.   Galley, P.J., Horner, J.A., and Hieftje, G.M., Automated Simplex Optimization for Monochromatic Imaging Inductively Coupled Plasma Atomic Emission Spectroscopy. Spectrochim. Acta, Part B, 50B(1), 87-107, (1995).

291.   Wu, M., Ensman, R.E., and Hieftje, G.M., Simple, Inexpensive System for Controlled-Dispersion Flow Analysis in Inductively Coupled Plasma Spectrometry. Appl. Spectrosc., 48(4), 448-453, (1994).

290.   Fong, A. and Hieftje, G.M., Near-IR Spectroscopic Examination of Thin-Layer Chromatography Plates in the Diffuse Transmittance Mode. Appl. Spectrosc., 48, 394-399, (1994).

289.   Hanselman, D.S., Sesi, N.N., Huang, M., and Hieftje, G.M., The Effect of Sample Matrix on Electron Density, Electron Temperature and Gas Temperature in the Argon Inductively Coupled Plasma Examined by Thomson and Rayleigh Scattering. Spectrochim. Acta. Electron., 49(5), 495-526, (1994).

288.   Galley, P.J. and Hieftje, G.M., Easily Ionizable Element Interferences in ICP-AES Part II.  Minimization of EIE Effects by Choice of Observation Volume. Spectrochim. Acta, Part B, 49B(7), 703-724, (1994).

287.   Wu, M., Duan, Y., and Hieftje, G.M., Elemental Mass Spectrometry Using a Helium Microwave Plasma Torch as an Ion Source. Spectrochim. Acta, Part B, 49B(2), 137-148, (1994).

286.   Galley, P.J. and Hieftje, G.M., Tomographically Resolved Ionization Temperatures and Electron Densities in the Inductively Coupled Plasma Determined by the Line to Continuum Method. Spectrochim. Acta, Part B, 48B, E1725-E1742, (1993).

285.   Wu, M., Madrid, Y., Auxier, J.A., and Hieftje, G.M., New Spray Chamber for Use in Flow-Injection Plasma Emission Spectrometry. Anal. Chim. Acta, 286, 155-167, (1994).

284.   Destrampe, K.A. and Hieftje, G.M., New Instrumentation for Use in Excitation-Emission Fluorescence-Polarization Measurements. Appl. Spectrosc., 47, 1548-1554, (1993).

283.   Starn, T.K., Pereiro, R., and Hieftje, G.M., Gas-Sampling Glow Discharge for Optical Emission Spectrometry.  Part I:  Design and Operating Characteristics. Appl. Spectrosc., 47(10), 1555-1561, (1993).

282.   Myers, D.P. and Hieftje, G.M., Preliminary Design Considerations and Characteristics of an Inductively Coupled Plasma-Time-of-Flight Mass Spectrometer. Microchem. J., 48, 259-277, (1993).

281.   Madrid, Y., Wu, M., Jin, Q., and Hieftje, G.M., Evaluation of Flow-Injection Techniques for Microwave Plasma Torch Atomic Emission Spectrometry. Anal. Chim. Acta, 277, 1-8, (1993).

280.   Broekaert, J.A.C., Pereiro, R., Starn, T.K., and Hieftje, G.M., A Gas-Sampling Glow Discharge Coupled to Hydride Generation for the Atomic Spectrometric Determination of Arsenic. Spectrochim. Acta, Part B, 48B, 1207-1220, (1993).

279.   Pereiro, R., Starn, T.K., and Hieftje, G.M., Gas-Sampling Glow Discharge for Optical Emission Spectrometry.  Part II:  Optimization and Evaluation for the Determination of Non-Metals in Gas-Phase Samples. Appl. Spectrosc., 49(5), 616-622, (1995).

278.   Pereiro, R., Wu, M., Broekaert, J.A.C., and Hieftje, G.M., Direct Coupling of Continuous Hydride Generation with Microwave Plasma Torch Atomic Emission Spectrometry for the Determination of Arsenic, Antimony and Tin. Spectrochim. Acta, Part B, 49B, 59-73, (1994).

277.   Galley, P.J., Glick, M., and Hieftje, G.M., Easily Ionizable Element Interferences in Inductively Coupled Plasma Atomic Emission Spectroscopy - I.  Effect on Radial Analyte Emission Patterns. Spectrochim. Acta, Part B, 48B(6/7), 769-788, (1993).

276.   Sesi, N.N., Starn, T.K., and Hieftje, G.M., Evaluation of an Automated On-Line Method for Generating Calibration Curves in Inductively Coupled Plasma Atomic Emission Spectrometry. Fres. J. Anal. Chem., 346, 545-549, (1993).

275.   Hieftje, G.M. Plasma Sources for Monitoring the Influent or Effluent from a Waste-Destruction Process in Plasma Technologies for Hazardous Waste Destruction, Villa Olmo - Como, Italy. G. Bonizzoni, G. Casati, D. Pitea, and E. Sindoni, Editor: 37, 43, (1992).

274.   Hieftje, G.M. Plasma Sources for Atomic Spectrochemical Analysis in Industrial Applications of Plasma Physics, Varenna, Italy. G. Bonizzoni, W. Hooke, and E. Sindoni, Editor: 293, (1992).

273.   Galley, P.J. and Hieftje, G.M., The OH 'Bullet' - A Promising Spatial Reference for the Inductively Coupled Plasma. J. Anal. At. Spectrom., 8, 715-721, (1993).

272.   Wu, M. and Hieftje, G.M., A New Spray Chamber for Inductively Coupled Plasma Spectrometry. Appl. Spectrosc., 46, 1912-1918, (1992).

271.   Galley, P.J. and Hieftje, G.M., Technique for Producing Capillaries with Reproducible Orifice Diameters for Uniform Droplet Generation. Appl. Spectrosc., 46, 1460-1463, (1992).

270.   Starn, T.K. and Hieftje, G.M., Acoustically Driven Device for Introducing Solid Samples into an Inductively Coupled Plasma. Appl. Spectrosc., 46, 1454-1459, (1992).

269.   Sesi, N.N., Galley, P.J., and Hieftje, G.M., Evaluation of a Linear-Flow Torch for Inductively Coupled Plasma Atomic Emission Spectrometry. J. Anal. At. Spectrom., 8, 65-70, (1993).

268.   Borer, M.W. and Hieftje, G.M., Design Considerations for a Pressure-Differential Tandem Source for Use in Atomic Spectrometry. J. Anal. At. Spectrom., 8, 333-338, (1993).

267.   Wise, D.L. and Wingard, L.B., Jr., ed. Biosensors with Fiberoptics. Contemporary Instrumentation and Analysis, ed. G.M. Hieftje. Humana Press: Clifton, NJ, 1991.

266.   Borer, M.W. and Hieftje, G.M., Inductively Coupled Plasma-Microwave Induced Plasma Tandem Source for Atomic Emission Spectrometry. J. Anal. Atom. Spectrom., 8, 339-349, (1993).

265.   Borer, M.W. and Hieftje, G.M., Tandem Sources for Analytical Atomic Spectrometry. Spectrochim. Acta, Part B, 14(6), 463-486, (1991).

264.   Borer, M.W., Ensman, R.E., Madrid, Y., and Hieftje, G.M., A New Method for Feedback Stabilization of a Microwave Power Supply. Appl. Spectrosc., 46, 1162-1167, (1992).

263.   Borer, M.W., Sesi, N.N., Starn, T.K., and Hieftje, G.M., A LabVIEW©2 Program for Data Collection and Calculation of Figures of Merit. Spectrochim. Acta, Part B, 47B(9), E1135-E1151, (1992).

262.   Hieftje, G.M., Towards the Next Generation of Plasma Source Mass Spectrometers - Plenary Lecture. J. Anal. At. Spectrom., 7, 783-790, (1992).

261.   Norman, L.A., Munoz, M., Myers, D.P., Ross, B.S., and Hieftje, G.M., Characterization of a 23-mm Torch for Use in Inductively Coupled Plasma Mass Spectrometry. Appl. Spectrosc., 46, 448-457, (1992).

260.   Hieftje, G.M. and Norman, L.A., Plasma Source Mass Spectrometry. Int. J. Mass Spectrom. and Ion Proc., 118/119, 519-573, (1992).

259.   Carroll, M.K., Miller, R.M., Keller, R.A., and Hieftje, G.M., On the Feasibility of Passive Optical Separation of Scatter and Fluorescence. Appl. Spectrosc., 46, 442-447, (1992).

258.   Carroll, M.K. and Hieftje, G.M., A Novel Fiber-Optic-Based Pump-Probe Instrument for the Acquisition of Kinetic Information. Appl. Spectrosc., 46, 317-321, (1992).

257.   Childers, A.G. and Hieftje, G.M., Measurement of Solute Vaporization Rates in an Analytical Flame by Laser-Light Scattering. Anal. Chem., 65, 2761-2765, (1993).

256.   Childers, A.G. and Hieftje, G.M., Laser-Light Scattering Instrument for the Measurement of Solute Vaporization Rates in Analytical Flames. Anal. Chem., 65, 2753-2760, (1993).

255.   Zhu, C. and Hieftje, G.M., Near-Infrared Analysis of Chemical Constituents and Physical Characteristics of Polymers. Appl. Spectrosc., 46, 69-72, (1992).

254.   Carroll, M.K. and Hieftje, G.M., New Fiber-Optic-Based Instrumentation for the Measurement of Low-Temperature Phosphorescence Intensities and Lifetimes. Appl. Spectrosc., 46, 126-130, (1992).

253.   Hieftje, G.M., Galley, P.J., Glick, M., and Hanselman, D.S., New Developments and Final Frontiers in Inductively Coupled Plasma Spectrometry. J. Anal. At. Spectrom., 7, 69-73, (1992).

252.   Glick, M. and Hieftje, G.M., Stereoscopic Data Visualization:  Pattern Recognition in Three Dimensions. Anal. Chim. Acta, 259, 79-87, (1992).

251.   Starn, T.K. and Hieftje, G.M., On-Line Gradient Calibration for Atomic Absorption Spectrometry. J. Anal. At. Spectrom., 7, 335-338, (1992).

250. Hieftje, G.M., Reply to Letter form Boris V. L'Vov and Walter Slavin. J. Anal. At. Spectrom., 6, 191-192, (1991).

249.   Hieftje, G.M., Plasma Diagnostic Techniques for Understanding and Control. Spectrochim. Acta, Part B, 47B, 3-25, (1992).

248.   Hanselman, D.S., Withnell, R., and Hieftje, G.M., Side-On Photomultiplier Gating System for Thomson Scattering and Laser-Excited Atomic Fluorescence Spectroscopy. Appl. Spectrosc., 45, 1553-1560, (1991).

247.   Iwata, T. and Hieftje, G.M., Simple Method to Measure the Coherence Time of a Mode-Locked Laser. Appl. Spectrosc., 46, 1464-1468, (1992).

246.   Carroll, M.K. and Hieftje, G.M., Effect of Optical-Fiber Length on the Width of a Transmitted Laser Pulse:  Comparison of Theoretical Calculations and Experimentally Measured Pulses. Appl. Spectrosc., 45, 1053-1056, (1991).

245.   Carnahan, J.W. and Hieftje, G.M., Helium-Chlorine Charge Transfer:  An Explanation for Chlorine Ion Emission Behavior in Helium Discharges. Spectrochim. Acta, Part B, 47B(5), 731-739, (1992).

244.   Broekaert, J.A.C., Bricker, T., Brushwyler, K.R., and Hieftje, G.M., Investigations of a Jet-Assisted Glow Discharge Lamp for Optical Emission Spectrometry. Spectrochim. Acta, Part B, 47B, 131-142, (1992).

243.   Glick, M. and Hieftje, G.M., Classification of Alloys with an Artificial Neural Network and Multivariate Calibration of Glow-Discharge Emission Spectra. Appl. Spectrosc., 45, 1706-1716, (1991).

242.   Brushwyler, K.R. and Hieftje, G.M., Evaluation of a Frequency-Selectable Solid-State Generator for Inductively Coupled Plasma Atomic Emission Spectrometry. Appl. Spectrosc., 46, 1098-1104, (1992).

241.   Ross, B.S. and Hieftje, G.M., Alteration of the Ion-Optic Lens Configuration to Eliminate Mass-Dependent Matrix-Interference Effects in Inductively Coupled Plasma-Mass Spectrometry. Spectrochim. Acta, Part B, 46B, 1263-1273, (1991).

240.   Easley, S.F., Monnig , C.A., and Hieftje, G.M., Reduction of Acoustic Noise in ICP Emission by the Addition of a Chimney. Appl. Spectrosc., 45, 1368-1371, (1991).

239.   Brushwyler, K.R. and Hieftje, G.M., Glow-Discharge Atomic Emission Spectrometry with a Spectrally Segmented Photodiode-Array Spectrometer. Appl. Spectrosc., 45, 682-691, (1991).

238.   Ross, B.S. and Hieftje, G.M., Selection of Solvent Load and First-Stage Pressure to Reduce Interference Effects in Inductively Coupled Plasma-Mass Spectrometry. J. Am. Soc. Mass Spectrom., 3, 128-138, (1992).

237.   Chambers, D.M., Carnahan, J.W., Jin, Q., and Hieftje, G.M., Fundamental Studies of the Sampling Process in an Inductively Coupled Plasma-Mass Spectrometer Part IV. - Replacement of the Inductively Coupled Plasma with a Helium Microwave-Induced Plasma. Spectrochim. Acta, Part B, 46B, 1745-1765, (1991).

236.   Chambers, D.M., Ross, B.S., and Hieftje, G.M., Fundamental Studies of the Sampling Process in an Inductively Coupled Plasma Mass Spectrometer - III.  Monitoring the Ion Beam. Spectrochim. Acta, Part B, 46B, 785-804, (1991).

235.   Chambers, D.M. and Hieftje, G.M., Fundamental Studies of the Sampling Process in an Inductively Coupled Plasma Mass Spectrometer - II.  Ion Kinetic Energy Measurements. Spectrochim. Acta, Part B, 46B, 761-784, (1991).

234.   Ross, B.S., Yang, P., Chambers, D.M., and Hieftje, G.M., Comparison of Center-Tapped and Inverted Load-Coil Geometries for Inductively Coupled Plasma-Mass Spectrometry. Spectrochim. Acta, Part B, 46B, 1667-1687, (1991).

233.   Chambers, D.H., Poehlman, J., Yang, P., and Hieftje, G.M., Fundamental Studies of the Sampling Process in an Inductively Coupled Plasma Mass Spectrometer - I.  Langmuir Probe Measurements. Spectrochim. Acta, Part B, 46B, 741-760, (1991).

232.   Glick, M., Brushwyler, K.R., and Hieftje, G.M., Multivariate Calibration of a Photodiode Array Spectrometer for Atomic Emission Spectroscopy. Appl. Spectrosc., 45, 328-333, (1991).

231.   Ross, B.S., Chambers, D.M., and Hieftje, G.M., Fundamental and Applied Investigations in Plasma-Source Mass Spectrometry for Elemental Analysis. Mikrochim. Acta [Wein], II, 287-297, (1991).

230.   Ross, B.S., Yang, P., and Hieftje, G.M., The Investigation of a 13-mm Torch for Use in Inductively Coupled Plasma-Mass Spectrometry. Appl. Spectrosc., 45, 190-197, (1991).

229.   Zhu, C. and Hieftje, G.M., On-Line Determination of Bromide Ion in Spent Brine. Anal. Chim. Acta, 256, 97-103, (1992).

228.   Huang, M., Hanselman, D.S., Yang, P., and Hieftje, G.M., Isocontour Maps of Electron Temperature, Electron Number Density and Gas Kinetic Temperature in the Ar Inductively Coupled Plasma Obtained by Laser-Light Thomson and Rayleigh Scattering. Spectrochim. Acta, Part B, 47B(6), 765-785, (1992).

227.   Huang, M., Hanselman, D.S., Jin, Q., and Hieftje, G.M., Non-Thermal Features of Atmospheric-Pressure Argon and Helium Microwave-Induced Plasmas Observed by Laser-Light Thomson Scattering and Rayleigh Scattering. Spectrochim. Acta, Part B, 45B, 1339-1352, (1990).

226.   Brushwyler, K.R., Furuta, N., and Hieftje, G.M., Characterization of a Spectrally Segmented Photodiode-Array Spectrometer for Inductively Coupled Plasma Atomic Emission Spectrometry. Spectrochim. Acta, Part B, 46B, 85-98, (1991).

225.   Brushwyler, K.R., Carter, L.D., and Hieftje, G.M., Flow-Injection Inductively Coupled Plasma Atomic Emission Spectrometry with a Multielement Photodiode-Array Spectrometer. Appl. Spectrosc., 44, 1438-1443, (1990).

224.   Zhu, C. and Hieftje, G.M., Feasibility of Using Liquid Crystals for the Development of Molecularly Selective Fiber-Optic Chemical Sensors. Anal. Chem., 62, 2079-2084, (1990).

223.   Richner, P., Borer, M.W., Brushwyler, K.R., and Hieftje, G.M., Comparison of Different Excitation Sources and Normalization Techniques in Laser-Ablations AES Using a Photodiode-Based Spectrometer. Appl. Spectrosc., 44, 1290-1296, (1990).

222.   Jin, Q., Wang, F., Zhu, C., Chambers, D.M., and Hieftje, G.M., Atomic Emission Detector for Gas Chromatography and Supercritical Fluid Chromatography. J. Anal. At. Spectrom., 5, 487-494, (1990).

221.   Rayson, G.D., Parisi, A.F., and Hieftje, G.M., Spatially Resolved Measurements as a Vehicle for Studying Atomization Mechnanisms in an ICP. Spectrochim. Acta, Part B, 44B, 999-1008, (1989).

220.   Ross, B.S., Chambers, D.M., Vickers, G.H., Yang, P., and Hieftje, G.M., Characterization of a 9-mm Torch for Inductively Coupled Plasma-Mass Spectrometry. J. Anal. At. Spectrom., 5, 351-358, (1990).

219.   Jin, Q., Zhu, C., Borer, M.W., and Hieftje, G.M., A Microwave Plasma Torch Assembly for Atomic Emission Spectrometry. Spectrochim. Acta, Part B, 46B, 417-430, (1991).

218.   Hieftje, G.M., Critical Comparison of Sources and Detection Methods in Atomic Spectrometry. Fres. J. Anal. Chem., 337, 528-537, (1990). Also 11th International Symposium on Microchemical Techniques, Weisbaden, West Germany, August 18, 1989.

217.   Jin, Q., Zhu, C., Brushwyler, K.R., and Hieftje, G.M., An Efficient and Inexpensive Ultrasonic Nebulizer for Atomic Spectrometry. Appl. Spectrosc., 44, 183-186, (1990).

216.   Huang, M., Yang, P.Y., Hanselman, D.S., Monnig , C.A., and Hieftje, G.M., Verification of a Maxwellian Electron-Energy Distribution in the ICP. Spectrochim. Acta, Part B, 45B, 511-520, (1990).

215.   Lodder, R.A. and Hieftje, G.M. Detection of Capsule Tampering by Near-Infrared Reflectance Analysis in Proceedings of the 16th Annual Computing Conference. Speakeasy Computing Corporation, 16, 151-220, (1989).

214.   Monnig , C.A., Madison, R.T., and Hieftje, G.M., The Direct Measurement of Magnetically Induced Optical Rotation in Atomic Vapors. Appl. Spectrosc., 44, 216-219, (1990).

213.   Vickers, G.H., Wilson, D.A., and Hieftje, G.M., Spatial Dependence of Ion Measurements in Inductively Coupled Plasma-Mass Spectrometry. Spectrochim. Acta, Part B, 45B, 499-509, (1990).

212.   Hieftje, G.M., Toward Improved Understanding and Control in Analytical Atomic Spectrometry. Spectrochim. Acta (Special Supplement), 44, 113-128, (1989). Also Pontificia Academia Scientiarvm as Scripta Varia No. 81.

211.   Zhu, C., Bright, F.V., and Hieftje, G.M., Simultaneous Determination of Br- and I- with a Multiple Fiber-Optic Fluorescence Sensor. Appl. Spectrosc., 44, 59-63, (1990).

210.   Zhu, C. and Hieftje, G.M., A New Liquid-Crystal-Based Fiber-Optic Temperature Sensor. Appl. Spectrosc., 43, 1333-1336, (1989).

209.   Vickers, G.H., Ross, B.S., and Hieftje, G.M., Reduction of Mass-Dependent Interferences in Inductively Coupled Plasma-Mass Spectrometry by Using Flow-Injection Analysis. Appl. Spectrosc., 43, 1330-1333, (1989).

208.   Yang, P., Chambers, D.M., and Hieftje, G.M., Matrix Effect on Ion Redistribution and Separation Near the Sampling Orifice on an Inductively Coupled Plasma Mass Spectrometer. J. Anal. At. Spectrom., (Internal Paper), (1989).

207.   Broekaert, J.A.C., Brushwyler, K.R., Monnig , C.A., and Hieftje, G.M., Fourier Transform Atomic Emission Spectrometry with a Grimm-Type Glow-Discharge Source. Spectrochim. Acta, Part B, 45B(7), 769-778, (1990).

206.   Yang, P., Ross, B.S., and Hieftje, G.M., Modification of an ICP Impedance-Matching Network for Center-Grounded Load-Coil Operation. Appl. Spectrosc., 43(6), 1093-1095, (1989).

205.   Vickers, G.H., Wilson, D.A., and Hieftje, G.M., Comparison of 27 MHz and 40 MHz Plasmas in Inductively Coupled Plasma-Mass Spectrometry. J. Anal. At. Spectrom., 4, 749-754, (1989).

204.   Monnig , C.A. and Hieftje, G.M., An Investigation of Noise Amplitude Spectra Produced by a Direct-Current Plasma. Appl. Spectrosc., 43(5), 742-746, (1989).

203.   Brushwyler, K.R., Furuta, N., and Hieftje, G.M., Use of a Spectrally Segmented Photodiode-Array Spectrometer for Inductively Coupled Plasma Atomic Emission Spectroscopy:  Examination of Procedures for the Evaluation of Detection Limits. Talanta, 37, 23-32, (1990).

202.   Monnig , C.A., Gebhart, B.D., and Hieftje, G.M., Correction of Gain and Optical Throughput Variations in a Two-Dimensional Imaging Spectrometer. Appl. Spectrosc., 43(3), 577-579, (1989).

201.   Madison, R.T., Carroll, M.K., and Hieftje, G.M., Convenient Fiber-Optic-Based Sample Cell for Shpol'skii and Low-Temperature Phosphorescence Spectrometry. Appl. Spectrosc., 43(3), 422-425, (1989).

200. Huang, M. and Hieftje, G.M., Simultaneous Measurement of Local Electron Temperatures, Electron Number Densities and Gas Temperature by Laser Light Scattering from the ICP. Spectrochim. Acta, Part B, 44B(8), 739-749, (1989).

199.   Monnig , C.A., Gebhart, B.D., Marshall, K.A., and Hieftje, G.M., Tomographic Image Reconstruction Techniques for Spectroscopic Sources:  2.  Instrumentation. Spectrochim. Acta, Part B, 45B(3), 261-270, (1990).

198.   Furuta, N., Monnig , C.A., Yang, P., and Hieftje, G.M., Noise Characteristics of an Inductively Coupled Plasma-Mass Spectrometer. Spectrochim. Acta, Part B, 44B(7), 649-656, (1989).

197.   Carroll, M.K., Bright, F.V., and Hieftje, G.M., Fiber-Optic Time-Resolved Fluorescence Sensor for the Simultaneous Determination of Al3+, Ga3+ and In3+. Anal. Chem., 61, 1768-1772, (1989).

196.   Hieftje, G.M., Noise - Friend or Foe? Amer. Lab., 20, 110-115, (1988).

195.   Hieftje, G.M., Atomic Spectrometry, in Encyclopedia of Science and Technology, McGraw-Hill (1988).

194.   Carroll, M.K., Bright, F.V., and Hieftje, G.M., Luminescence Originating in an Optical Fiber. Appl. Spectrosc., 43, 176-178, (1989).

193.   Ross, B.S., Vickers, G.H., Yang, P., and Hieftje, G.M., Preliminary Evaluation of a Miniaturized Torch for Inductively Coupled Plasma Mass Spectrometry. Internal Paper, (1988).

192.   Furuta, N., Brushwyler, K.R., and Hieftje, G.M., Flow Injection Analysis Utilizing a Spectrally Segmented Photodiode-Array Inductively Coupled Plasma Emission Spectrometer.  I.  Microcolumn Preconcentration for the Determination of Molybdenum. Spectrochim. Acta, Part B, 44B(4), 349-358, (1989).

191.   Hieftje, G.M. and Vickers, G.H., Developments in Plasma-Source Mass Spectrometry. Anal. Chim. Acta, 216, 1-24, (1989).

190.   Hieftje, G.M., AAS - Has it Gone or Where Is It Going. J. Anal. At. Spectrom., 4, 117-122, (1989).

189.   Lodder, R.A. and Hieftje, G.M., Detection of Subpopulations in Near-Infrared Reflectance Analysis. Appl. Spectrosc., 42, 1500-1512, (1988).

188.   Lodder, R.A. and Hieftje, G.M., Quantile BEAST Attacks the False-Sample Problem in Near-Infrared Reflectance Analysis. Appl. Spectrosc., 42, 1351-1365, (1988).

187.   Lodder, R.A. and Hieftje, G.M., Quantile Analysis:  A Method for Characterizing Data Distributions. Appl. Spectrosc., 42, 1512-1520, (1988).

186.   Lodder, R.A., Moorehead, W., Robertson, S.P., Rand  , P., and Hieftje, G.M., Assessment of the Feasibility for Determination of Cholesterol and Other Blood Constituents by Near-Infrared Reflectance Analysis. Talanta, 36(1/2), 193-198, (1989).

185.   Huang, M. and Hieftje, G.M., A New Procedure for Determination of Electron Temperatures and Electron Concentrations by Thomson Scattering from Analytical Plasmas. Spectrochim. Acta, Part B, 44B(3), 291-305, (1989).

184.   Zhu, C., Bright, F.V., Wyatt, W.A., and Hieftje, G.M., A New Fluorescence Sensor for Quantification of Atmospheric Humidity. J. Electrochem. Soc., 136(2), 567-570, (1989).

183.   Galante, L.J., Selby, M., and Hieftje, G.M., A Low-Power Surfatron Source for the Atomic-Emission-Spectrometric Detection of Nonmetals in Aqueous Solution. Appl. Spectrosc., 42, 559-567, (1988).

182.   Monnig , C.A. and Hieftje, G.M., Trace Metal Determinations by Monitoring Modulated Magnetically Induced Optical Rotation in Atomic Vapours. J. Anal. At. Spectrom., 3, 679-682, (1988).

181.   Lodder, R.A. and Hieftje, G.M., Analysis of Intact Tablets by Near-Infrared Reflectance Spectrometry. Appl. Spectrosc., 42, 556-558, (1988).

180.   Lodder, R.A., Selby, M., and Hieftje, G.M., Applications of Cellular Automata:  Attractors and Fractals in Analytical Chemistry? Trends in Anal. Chem., 7, 240-244, (1988).

179.   Luffer, D.R., David, P.A., Galante, L.J., Novotny, M.V., and Hieftje, G.M., Evaluation of a Supercritical Fluid Chromatograph Coupled to a Surface-Wave-Sustained Microwave-Induced Plasma Detector. Anal. Chem., 60, 1365-1369, (1988).

178.   Galante, L.J., Selby, M., Luffer, D.R., Hieftje, G.M., and Novotny, M.V., Characterization of the Microwave-Induced Plasma as a Detector for Supercritical Fluid Chromatography. Anal. Chem., 60, 1370-1376, (1988).

177.   Vickers, G.H., Wilson, D.A., and Hieftje, G.M., The Detection of Negative Ions by Inductively Coupled Plasma-Mass Spectrometry. Anal. Chem., 60, 1808-1812, (1988).

176.   Lodder, R.A. and Hieftje, G.M., Subsurface Image Reconstruction by Near-Infrared Reflectance Analysis. Appl. Spectrosc., 42, 309-312, (1988).

175.   Haugen, G. and Hieftje, G.M., An Interdisciplinary Approach to Microinstrumentation. Anal. Chem., 60, 23A-31A, (1988).

174.   Lodder, R.A. and Hieftje, G.M., A Disposable Liquid Microcell for Near-Infrared Reflectance Analysis. Appl. Spectrosc., 42, 518-519, (1988).

173.   Bright, F.V., Monnig , C.A., and Hieftje, G.M., A New Dual-Channel Frequency Domain Fluorometer for the Determination of Picosecond Rotational Correlation Times. Appl. Spectrosc., 42, 272-277, (1988).

172.   Marks, M.A. and Hieftje, G.M., An Emission-Based Feedback System for Stabilizing an Inductively Coupled Plasma. Appl. Spectrosc., 42, 277-280, (1988).

171.   Galante, L.J., Wilson, D.A., and Hieftje, G.M., Detection of Ions by Replacement-Ion Chromatography Coupled to a Microwave-Induced Nitrogen Discharge at Atmospheric Pressure. Anal. Chim. Acta, 215, 99-109, (1988).

170.   Galante, L.J. and Hieftje, G.M., Universal Detection of Ions by Replacement-Ion Chromatography Employing a Anion Replacement Method and a UV-Visible Spectrophotometric Detector. Anal. Chem., 60, 995-1002, (1988).

169.   Hieftje, G.M., Bright, F.V., Childers, A.G., Marshall, K.A., and Monnig , C.A., New Laser-Based Methods for Atomic and Molecular Spectroscopy. ICP Info. Newsl., 12, 728-731, (1987).

168.   Zhu, C., Bright, F.V., Wyatt, W.A., and Hieftje, G.M. A New Fluorescence Sensor for Quantification of Atmospheric Humidity in Proceedings of the Symposium on Chemical Sensors, Honolulu , Hawaii. D.R. Turner, Editor:The Electrochemical Society, 87-89, 476-483, (1988).

167.   Marshall, K.A. and Hieftje, G.M., Thomson Scattering for Determining Electron Concentrations and Temperatures in an ICP- II.   Description and Evaluation of a Multichannel Instrument. Spectrochim. Acta, Part B, 43B, 851-865, (1988).

166.   Marshall, K.A. and Hieftje, G.M., Thomson Scattering for Determining Electron Concentrations and Temperatures in an ICP - I.  Assessment of the Technique for a Low-Flow, Low-Power Plasma. Spectrochim. Acta, Part B, 43B, 841-849, (1988).

165.   Marshall, K.A. and Hieftje, G.M., Measurement of True Gas-Kinetic Temperatures in an Inductively Coupled Plasma by Laser-Light Scattering. J. Anal. At. Spectrom., 2, 567-571, (1987).

164.   Mitchell, J.C., Steele, A.W., and Hieftje, G.M., The Use of Discharge Lamps as Directly Modulated Atom Reservoirs for Selective Line Modulation in Atomic Emission Spectrometry. Anal. Chem. Acta, 200, 539-550, (1987).

163.   Bright, F.V., Poirier, G.E., and Hieftje, G.M., A New Ion Sensor Based on Fiber Optics. Talanta, 35, 113-118, (1988).

162.   Bright, F.V., Monnig, C.A., and Hieftje, G.M., A New Fiber-Optic-Based Phase-Resolved Phosphorescence Spectrometer, in Advances in Multidimensional Luminescence, I.M. Warner, Editor, JAI Press, Inc. (1991), 131.

161.   Wyatt, W.A., Bright, F.V., and Hieftje, G.M., Characterization and Comparison of Three Fiber-Optic Sensors for Iodine Determination Based on Dynamic Fluorescence Quenching of Rhodamine 6G. Anal. Chem., 59, 2272-2276, (1987). Also Milestones in Analytical Chemistry, 374-378, (1994).

160.   Galante, L.J. and Hieftje, G.M., Characterization of Replacement-Ion Chromatography Employing Cation Replacement and Flame-Spectrometric Detection. Anal. Chem., 59, 2293-2302, (1987).

159.   Bright, F.V. and Hieftje, G.M., Rapid-Scanning Frequency-Domain Fluorometer with Picosecond Time Resolution. Appl. Opt., 26, 3526-3529, (1987).

158.   Selby, M. and Hieftje, G.M., Inductively Coupled Plasma-Mass Spectrometry:  A STATUS REPORT. Amer. Lab./Intl. Lab., 19/17, 16-28/28-40, (1987).

157.   Hieftje, G.M., Miller, R.M., Pak, Y., and Wittig, E.P., Theoretical Examination of Solute Particle Vaporization in Analytical Atomic Spectrometry. Anal. Chem., 59, 2861-2872, (1987).

156.   Wilson, D.A., Vickers, G.H., and Hieftje, G.M., Use of the Microwave-Induced Nitrogen Discharge at Atmospheric Pressure (MINDAP) as an Ion Source for Elemental Mass Spectrometry. Anal. Chem., 59, 1664-1670, (1987).

155.   Wilson, D.A., Vickers, G.H., and Hieftje, G.M., Ionization Temperatures in the Inductively Coupled Plasma Determined by Mass Spectrometry. Appl. Spectrosc., 41, 875-880, (1987).

154.   Wilson, D.A., Vickers, G.H., and Hieftje, G.M., Spectral and Physical Interferences in a New, Flexible Inductively Coupled Plasma Mass Spectrometry Instrument. J. Anal. At. Spectrom., 2, 365-368, (1987).

153.   Selby, M., Rezaaiyaan, R., and Hieftje, G.M., Effect of Easily Ionized Elements Upon the Spatial Emission Properties of Microwave Induced Plasmas. Appl. Spectrosc., 41, 761-771, (1987).

152.   Selby, M., Rezaaiyann, R., and Hieftje, G.M., Spatial Emission Properties of a Surface-Wave-Sustained Plasma (Surfatron) in Helium. Appl. Spectrosc., 41, 749-761, (1987).

151.   Monnig , C.A., Marshall, K.A., Rayson, G.D., and Hieftje, G.M., Tomographic Image Reconstruction Techniques for Spectroscopic Sources:  1.  Theory and Computer Simulations. Spectrochim. Acta, Part B, 43B, 1217-1233, (1988).

150. Lodder, R.A., Selby, M., and Hieftje, G.M., Detection of Capsule Tampering by Near-Infrared Reflectance Analysis. Anal. Chem., 59, 1921-1930, (1987).

149.   Wyatt, W.A., Poirier, G.E., Bright, F.V., and Hieftje, G.M., Fluorescence Spectra and Lifetimes of Several Fluorophores Immobilized on Nonionic Resins for Use in Fiber-Optic Sensors. Anal. Chem., 59, 572-576, (1987).

148.   Bright, F.V., Marshall, K.A., Monnig , C.A., Wilson, D.A., Wyatt, W.A., and Hieftje, G.M., Some Recent Applications of Lasers to Analytical Chemistry. Laser Topics, 9, 8-10_, (1987).

147.   Hieftje, G.M., Letter from America. Euro. Spectrosc. News, 64, 24-30, (1986).

146.   Hieftje, G.M., Models, Measurements, Methods and Machines in Analytical Spectrometry. Anal. Proc., 23, 382-387, (1986).

145.   Bright, F.V., Monnig , C.A., and Hieftje, G.M., Rapid Frequency-Scanned Fiber-Optic Fluorometer Capable of Subnanosecond Lifetime Determinations. Anal. Chem., 58, 3139-3144, (1986).

144.   Bright, F.V., Monnig , C.A., and Hieftje, G.M., A New Frequency-Domain Fluorometer for the Rapid Determination of Picosecond Rotational-Correlation Times. J. Appl. Phys., 61, 8-11, (1987).

143.   Steele, A.W. and Hieftje, G.M., A Modulated Sample Introduction System for Atomic Emission Spectrometry. Appl. Spectrosc., 40, 1127-1131, (1986).

142.   Steele, A.W. and Hieftje, G.M., A Detailed Study of Noise Sources in Selective Line Modulation Atomic Spectrometry. Appl. Spectrosc., 40, 1117-1126, (1986).

141.   Steele, A.W. and Hieftje, G.M., The Use of Sample Modulation to Simplify the Experimental Arrangement of Selective Line Modulation in Atomic Emission Spectrometry. Appl. Spectrosc., 40, 1110-1117, (1986).

140.   Childers, A.G. and Hieftje, G.M., Morphological Investigation of Solute Particles Trapped from an Air-Acetylene Flame. Appl. Spectrosc., 40, 939-944, (1986).

139.   Wilson, D.A., Vickers, G.H., Hieftje, G.M., and Zander, A.T., Analytical Characteristics of an Inductively Coupled Plasma-Mass Spectrometer. Spectrochim. Acta, Part B, 42B, 29-38, (1987).

138.   Bright, F.V. and Hieftje, G.M., A New Technique for the Elimination of Fluorescence Interference in Raman Spectroscopy. Appl. Spectrosc., 40, 583-587, (1986).

137.   Selby, M. and Hieftje, G.M., Taming the Surfatron. Spectrochim. Acta, Part B, 42B, 285-298, (1987).

136.   Parisi, A.F., Rayson, G.D., and Hieftje, G.M., Temporally and Spatially Resolved Studies in an Amplitude Modulated Inductively Coupled Plasma. Spectrochim. Acta, Part B, 42B, 361-376, (1987).

135.   Childers, A.G. and Hieftje, G.M., An Improved Uniform-Size Droplet Generator. Appl. Spectrosc., 40, 688-691, (1986).

134.   Bright, F.V., Wilson, D.A., and Hieftje, G.M., Determination of Subnanosecond Fluorescence Lifetimes with a UHF Television Tuner and a CW or Mode-Locked Laser. Appl. Spectrosc., 40, 683-687, (1986).

133.   Childers, A.G. and Hieftje, G.M., A Novel Light-Scattering Technique to Study Gas Flow Dynamics in an ICP Torch. Appl. Spectrosc., 40, 680-683, (1986).

132.   Hites, B.R., Olesik, J.W., Parisi, A.F., and Hieftje, G.M., A Computerized Tool for Studying Two-Dimensional Images of Spectroscopic Sources. Computer Enhanced Spectrosc., 3, 91-94, (1986).

131.   Bright, F.V., Vickers, G.H., and Hieftje, G.M., Use of Time Resolution to Eliminate Bilirubin Interference in the Determination of Fluorescein. Anal. Chem., 58, 1225-1227, (1986).

130.   Rayson, G.D. and Hieftje, G.M., A Steady-State Approach to Evaluation of Proposed Excitation Mechanisms in the Analytical ICP. Spectrochim. Acta, Part B, 41B, 683-697, (1986).

129.   Greenfield, S., Hieftje, G.M., Omenetto, N., Scheeline, A., and Slavin, W., Twenty-Five Years of Analytical Atomic Spectroscopy. Anal. Chim. Acta, 180, 69-98, (1986).

128.   Steele, A.W. and Hieftje, G.M., A Modulated Sample-Introduction System for Atomic Emission Spectrometry. Appl. Spectrosc., 40, 357-363, (1986).

127.   Freeman, J., Childers, A.G., Steele, A.W., and Hieftje, G.M., A Fiber-Optic Absorption Cell for Remote Determination of Copper in Industrial Electroplating Baths. Anal. Chim. Acta, 177, 121-128, (1985).

126.   Huang, M., Marshall, K.A., and Hieftje, G.M., Electron Temperatures and Electron Number Densities Measured by Thomson Scattering in the Inductively Coupled Plasma. Anal. Chem., 58, 207-210, (1986).

125.   Huang, M. and Hieftje, G.M., Thomson Scattering from an ICP. Spectrochim. Acta, Part B, 40B, 1387-1400, (1985).

124.   Vickers, G.H., Miller, R.M., and Hieftje, G.M., Time-Resolved Fluorescence With an Optical-Fiber Probe. Anal. Chim. Acta, 192, 145-153, (1987).

123.   Parisi, A.F. and Hieftje, G.M., Fundamental Studies in the ICP Using a Sinusoidally Modulated Power Input. Appl. Spectrosc., 40, 181-185, (1986).

122.   Wilson, D.A., Vickers, G.H., and Hieftje, G.M., Novel Techniques for the Determination of Fluorescence Lifetimes. Anal. Instrum., 14, 483-502, (1985).

121.   Hieftje, G.M., Mills, J.W., Carr, J.W., Rayson, G.D., Huang, M., and Marshall, K.A., Energy Transport and Analyte Excitation in the ICP, in Analytical Chemistry in the Exploration, Mining and Processing of Materials, L.R.P. Butler, Editor, Blackwell Scientific Publications (1986), 15-24.

120.   Withnell, R., Rayson, G.D., Parisi, A.F., and Hieftje, G.M., Modification of an Inductively Coupled Plasma Radio-Frequency Supply for Amplitude Modulation with Complex Waveforms. Anal. Chem., 57, 2414-2417, (1985).

119.   Honigs, D.E., Hirschfeld, T., and Hieftje, G.M., Near-Infrared Spectrophotometric Methods Development with a Limited Number of Samples.  Application to Carbonate in Geological Samples. Appl. Spectrosc., 39, 1062-1065, (1985).

118.   Rezaaiyaan, R., Hieftje, G.M., and Hirschfeld, T., The Use of Sample Additives in Flame Emission Spectroscopy. Anal. Chim. Acta, 181, 195-201, (1986).

117.   Wilson, D.A., Yuen, A., and Hieftje, G.M., Comparison of the Helium-Oxygen-Acetylene and Air-Acetylene Flames as Atom Sources for Continuum-Source Atomic Fluorescence Spectrometry. Anal. Chim. Acta, 171, 241-249, (1985).

116.   Huang, M., Marshall, K.A., and Hieftje, G.M., An Apparatus for Measuring Thomson Scattering in an Inductively Coupled Plasma. Spectrochim. Acta, Part B, 40B, 1211-1217, (1985).

115.   Olesik, J.W. and Hieftje, G.M., Optical Imaging Spectrometers. Anal. Chem., 57, 2049-2055, (1985).

114.   Rezaaiyaan, R. and Hieftje, G.M., Analytical Characteristics of an Optimized Miniature Inductively Coupled Plasma Source for Atomic Emission Spectrometry. Anal. Chim. Acta, 173, 63-75, (1985).

113.   Hieftje, G.M., The Two Sides of Analytical Chemistry. Anal. Chem., 57, 256A-262A, (1985).

112.   Rezaaiyaan, R. and Hieftje, G.M., Analytical Characteristics of a Low-Flow, Low-Power Inductively Coupled Plasma. Anal. Chem., 57, 412-415, (1985).

111.   Honigs, D.E., Hirschfeld, T., and Hieftje, G.M., Near-Infrared Determination of Several Physical Properties of Hydrocarbons. Anal. Chem., 57, 443-442, (1985).

110.   Honigs, D.E., Hieftje, G.M., Mark, H.L., and Hirschfeld, T., Unique-Sample Selection Via Near-Infrared Spectral Subtraction. Anal. Chem., 57, 2299-2303, (1985).

109.   Hirschfeld, T., Honigs, D., and Hieftje, G.M., An Optimization of Detector-Noise-Limited Infrared Multi-Wavelength Determinations. Appl. Spectrosc., 39, 253-256, (1985).

108.   Hirschfeld, T., Honigs, D., and Hieftje, G.M., Optimization of Sample Absorbance for Quantitative Analysis in the Presence of Pathlength Error in the IR and NIR Regions. Appl. Spectrosc., 39, 430-433, (1985).

107.   Freeman, J.E. and Hieftje, G.M., Interferometric Detection of Near-Infrared Nonmetal Atomic Emission From a Microwave-Induced Plasma. Appl. Spectrosc., 39, 211-214, (1985).

106.   Freeman, J.E. and Hieftje, G.M., Near-Infrared Nonmetal Atomic Emission from a Helium Microwave-Induced Plasma:  Element Ratio Determinations. Spectrochim. Acta, Part B, 40B, 653-664, (1985).

105.   Freeman, J.E. and Hieftje, G.M., Analytical Characteristics of Near-Infrared Nonmetal Atomic Emission from a Helium Microwave-Induced Plasma. Spectrochim. Acta, Part B, 40B, 475-492, (1985).

104.   Yuen, A. and Hieftje, G.M., Burnt Gas Composition of the Helium-Oxygen-Acetylene Flame. Anal. Chim. Acta, 162, 403-407, (1984).

103.   Steele, A.W. and Hieftje, G.M., Micro-Droplet Titration Apparatus for Analyzing Small Sample Volumes. Anal. Chem., 56, 2884-2888, (1984).

102.   Honigs, D.E., Hieftje, G.M., and Hirschfeld, T., Number of Samples and Wavelengths Required for the Training Set in Near-Infrared Reflectance Spectroscopy. Appl. Spectrosc., 38, 844-847, (1984).

101.   Rezaaiyaan, R., Olesik, J.W., and Hieftje, G.M., Interferences in a Low-Flow, Low-Power Inductively Coupled Plasma. Spectrochim. Acta, Part B, 40B, 73-83, (1985).

100. Hieftje, G.M., Rayson, G.D., and Olesik, J.W., A Steady-State Approach to Excitation Mechanisms in the ICP. Spectrochim. Acta, Part B, 40B, 167-176, (1985).

99.     Deutsch, R.D. and Hieftje, G.M., Microsample Introduction into the MINDAP Using a Microarc Atomizer. Anal. Chem., 56, 1923-1927, (1984).

98.     Deutsch, R.D. and Hieftje, G.M., Identification of Limiting Noise Sources in the Microwave Induced Nitrogen Discharge at Atmospheric Pressure. Appl. Spectrosc., 39, 19-24, (1985).

97.     Deutsch, R.D., Keilsohn, J.P., and Hieftje, G.M., Analytical Characteristics of the Microwave-Induced Nitrogen Discharge at Atmospheric Pressure (MINDAP). Appl. Spectrosc., 39, 531-534, (1985).

96.     Deutsch, R.D. and Hieftje, G.M., Development of a Microwave Induced Nitrogen Discharge at Atmospheric Pressure (MINDAP). Appl. Spectrosc., 39, 214-222, (1985).

95.     Pak, Y. and Hieftje, G.M., Vaporization in the Absence of Ionization of Alkali Chloride Particles in a Laminar Air-Acetylene Flame. Spectrochim. Acta, Part B, 40B, 209-216, (1985).

94.     Hirschfeld, T., Wang, F., Haugen, G., and Hieftje, G.M. Fiber Optics Temperature and Pressure Probe in 26th ORNL-DOE Conference on Analytical Chemistry in Energy Technology, Knoxville, TN, October 11-13. Anal. Chem. Symp. Ser., 19, 19-23, (1984).

93.     Freeman, J.E. and Hieftje, G.M., A Comparison of Signal-to-Noise Ratios for Near-Infrared Detectors. Appl. Spectrosc., 38, 837-843, (1984).

92.     Hieftje, G.M., Mini, Micro, and High-Efficiency Torches for the ICP -- Toys or Tools? Spectrochim. Acta, Part B, 38B, 1465-1481, (1983).

91.     Hieftje, G.M., New Techniques and Tools for Clinical Chemistry. Clin. Chem., 29, 1659-1664, (1983).

90.     Doherty, M.P. and Hieftje, G.M., Jet-Impact Nebulization for Sample Introduction in Inductively Coupled Plasma Spectrometry. Appl. Spectrosc., 38, 405-412, (1984).

89.     Mills, J.W. and Hieftje, G.M., A Detailed Consideration of Resonance Radiation Trapping in the Argon Inductively Coupled Plasma. Spectrochim. Acta, Part B, 39B, 859-866, (1984).

88.     Honigs, D.E., Hieftje, G.M., and Hirschfeld, T., A New Method for Obtaining Individual Component Spectra from Those of Complex Mixtures. Appl. Spectrosc., 38, 317-322, (1984).

87.     Farnsworth, P.B. and Hieftje, G.M., Sample Introduction into the ICP by a Radio-Frequency Arc. Anal. Chem., 55, 1414-1417, (1983).

86.     Hieftje, G.M., Low-Cost Tunable Lasers--Prospects for Chemical Analysis. Amer. Lab./Intl. Lab., 15/15, 66-74/68-80, (1983).

85.     Honigs, D.E., Freelin, J.M., Hieftje, G.M., and Hirschfeld, T., Near Infrared Reflectance Analysis by Gauss-Jordan Linear Algebra. Appl. Spectrosc., 37, 491-497, (1983). [link]

84.     Smith, S.B., Jr. and Hieftje, G.M., A New Background-Correction Method for Atomic Absorption Spectrometry. Appl. Spectrosc., 37, 419-424, (1983). [link]

83.     Downey, S.W. and Hieftje, G.M., Replacement Ion Chromatography with Flame Photometric Detection. Anal. Chim. Acta, 153, 1-13, (1983). [link]

82.     Keilsohn, J.P., Deutsch, R.D., and Hieftje, G.M., The Use of a Microarc Atomizer for Sample Introduction into an Inductively Coupled Plasma. Appl. Spectrosc., 37, 101-105, (1983). [link]

81.     Hieftje, G.M. and Vogelstein, E.E., A Linear Response Theory Approach to Time-Resolved Fluorometry - Chapter 2, in Modern Fluorescence Spectroscopy, E. Wehry, Editor, Plenum Press:New York (1981), 25-50.

80.     Ramsey, J.M. and Hieftje, G.M., Signal-to-Noise Considerations in Fluctuation Analysis Spectroscopic Techniques, in New Directions in Molecular Luminescence, D. Eastwood, Editor, ASTM Publication 822:Philadelphia (1983), 82-100.

79.     Rezaaiyaan, R., Hieftje, G.M., Anderson, H., Kaiser, H., and Meddings, B., Design and Construction of a Low-Flow, Low-Power Torch for Inductively Coupled Plasma Spectrometry. Appl. Spectrosc., 36, 627-631, (1982). [link]

78.     Ensman, R.E., Carr, J.W., and Hieftje, G.M., Modification of a Plasma-Therm Inductively Coupled Plasma Supply to Enable RF Power Modulation. Appl. Spectrosc., 37, 571-573, (1983). [link]

77.     Carr, J.W., Blades, M.W., and Hieftje, G.M., A Separated Impedance Matcher/Load Coil Assembly for Convenient Spatial Translation of an ICP Torch. Appl. Spectrosc., 36, 689-691, (1982). [link]

76.     Hieftje, G.M., Approaching the Limit in Atomic Spectrochemical Analysis. J. Chem. Educ., 59, 900-909, (1982).  

75.     Downey, S.W. and Hieftje, G.M., Reduction of Spectral Interferences in Inductively Coupled Plasma-Atomic Emission Spectrometry by Selective Spectral-Line Modulation. Anal. Chim. Acta, 141, 193-205, (1982). [link]

74.     Shabushnig, J.G. and Hieftje, G.M., Microdroplet Sample Application in Electrothermal Atomization for Atomic Absorption Spectrometry. Anal. Chim. Acta, 148, 181-192, (1983). [link]

73.     Lemke, R.E. and Hieftje, G.M., A New, Directly Computer-Controlled pH-Stat. Anal. Chim. Acta, 141, 173-186, (1982). [link]

72.     Hieftje, G.M., Advances in Sample Introduction for Elemental Analysis. Ind. Chem. News, 3, 1, (1982).

71.     Russo, R.E. and Hieftje, G.M., Determination of Atomic and Molecular Excited-State Lifetimes Using an Opto-Electronic Cross-Correlation Method. Appl. Spectrosc., 36, 92-99, (1982). [link]

70.     Blades, M.W. and Hieftje, G.M., On the Significance of Radiation Trapping in the Inductively Coupled Plasma. Spectrochim. Acta, Part B, 37B, 191-197, (1982). [link]

69.     Russo, R.E. and Hieftje, G.M., A New Instrument for Time-Resolved Reduction of Scattered Radiation in Fluorescence Measurements. Anal. Chim. Acta, 134, 13-19, (1982). [l

68.     Haugen, G.R., Hieftje, G.M., Steinmetz, L.L., and Russo, R.E., Stochastic Photolysis:  A New Method for Measuring Rates of Photosensitive Reactions. Appl. Spectrosc., 36, 203-209, (1982). [link]

67.     Russo, R.E., Withnell, R., and Hieftje, G.M., Simple and Inexpensive Design for an Isolated Droplet Generator Useful in Studies of Atomization in Flames. Appl. Spectrosc., 35, 531-536, (1981). [link]

66.     de Olivares, D.R. and Hieftje, G.M., Saturation of Energy Levels in Analytical Atomic Fluorescence Spectrometry - II. Experimental. Spectrochim. Acta, Part B, 36B, 1059-1079, (1981). [link]

65.     Hieftje, G.M. and Haugen, G.R., Correlation-Based Approaches to Time-Resolved Fluorimetry. Anal. Chem., 53, 755A-766A, (1981).

64.     Horlick, G. and Hieftje, G.M., Correlation Methods in the Chemistry Laboratory. Amer. Lab., 13, 76-83, (1981).

63.     Shabushnig, J.G. and Hieftje, G.M., A Novel Device for the Accurate Dispensing of Small Volumes of Liquid Samples. Anal. Chim. Acta, 126, 167-174, (1981). [link]

62.     Russo, R.E., Withnell, R., and Hieftje, G.M., Power Stabilization Method for a Synchronously Pumped Dye Laser System. Rev. Sci. Instrum., 52, 772-773, (1981). [link]

61.     Zander, A.T. and Hieftje, G.M., Microwave-Supported Discharges. Appl. Spectrosc., 35, 357-371, (1981). [link]

60.     Bleasdell, B.D., Wittig, E.P., and Hieftje, G.M., An Approximate Model for the Liberation and Ionization of Atoms from Individual Solute Particles in Flame Spectrometry. Spectrochim. Acta, Part B, 36B, 205-213, (1981). [link]

59.     Weiss, A.D., Savage, R.N., and Hieftje, G.M., Development and Characterization of a 9-mm Inductively Coupled Argon Plasma (ICP) Source for Atomic Emission Spectrometry. Anal. Chim. Acta, 124, 245-258, (1981). [link]

58.     Russo, R.E. and Hieftje, G.M., Effects of Gas Composition and Flame Sheathing on the Spatial Velocity Profiles of Laminar Analytical Acetylene Flames. Spectrochim. Acta, Part B, 36B, 231-241, (1981). [link]

57.     Downey, S.W., Shabushnig, J.G., and Hieftje, G.M., Reduction of Spectral Interferences in Flame Emission Spectrometry by Selective Spectral-Line Modulation. Anal. Chim. Acta, 121, 165-174, (1980). [link]

56.     Hieftje, G.M. and Haugen, G.R., Correction of Quenching Errors in Analytical Fluorimetry Through Use of Time Resolution. Anal. Chim. Acta, 123, 255-261, (1981). [link]

55.     Russo, R.E. and Hieftje, G.M., An Accurate Model for Sample Droplet Acceleration in an Air-Acetylene Flame. Anal. Chim. Acta, 118, 293-299, (1980). [link]

54.     Zander, A.T. and Hieftje, G.M., Operational Characteristics of a High Power Microwave-Induced Helium Plasma. ICP Info. Newslett., 6, 168-169, (1980).

53.     Saturday, K.A. and Hieftje, G.M., Measurement and Comparison of Relative Free-Atom Fractions in the Helium-Oxygen-Acetylene Flame and Air-Acetylene Flames. Anal. Chem., 52, 786-792, (1980). [link]

52.     Saturday, K.A., Yuen, A., and Hieftje, G.M., Comparison of Atomic Fluorescence Power Efficiencies for the Helium-Oxygen-Acetylene and Air-Acetylene Flames. Anal. Chim. Acta, 164, 51-66, (1984). [link]

51.     Boss, C.B. and Hieftje, G.M., Experimental Studies on Spatial Distributions of Atoms Surrounding an Individual Solute Particle Vaporizing in an Analytical Flame. Anal. Chem., 51, 1897-1905, (1979). [link]

50. Savage, R.N. and Hieftje, G.M., Characteristics of the Background Emission Spectrum from a Miniature ICP. Anal. Chim. Acta, 123, 319-124, (1981).[link]

49.     Savage, R.N. and Hieftje, G.M., Vaporization and Ionization Interferences in a Miniature Inductively Coupled Plasma. Anal. Chem., 52, 1267-1272, (1980). [link]

48.     Sexton, E., Savage, R.N., and Hieftje, G.M., Hydrodynamic Flow Patterns as a Simple Aid to Effective Inductively Coupled Plasma Torch Design. Appl. Spectrosc., 33, 643-646, (1979). [link]

47.     Ramsey, J.M., Hieftje, G.M., and Haugen, G.R., Wide-Bandwidth Analog Correlator and Its Application to Mode-Locked Laser Measurements. Rev. Sci. Instrum., 50, 997-1001, (1979). [link]

46.     Ramsey, J.M., Hieftje, G.M., and Haugen, G.R., Time-Resolved Fluorimetry Via a New Cross-Correlation Method. Appl. Opt., 18, 1913-1920, (1979). [link]

45.     Boss, C.B. and Hieftje, G.M., Theoretical Study of the Spatial Distribution of Atoms Surrounding an Individual Solute Particle Vaporizing in an Analytical Flame. Anal. Chem., 51, 895-901, (1979). [link]

44.     Bystroff , R.I., Layman, L.R., and Hieftje, G.M., Investigation into the Operating Characteristics of a "Microarc" Atmospheric-Pressure Glow Discharge. Appl. Spectrosc., 33, 230-240, (1979). [link]

43.     Savage, R.N. and Hieftje, G.M., Development and Characterization of a Miniature Inductively Coupled Plasma Source for Atomic Emission Spectrometry. Anal. Chem., 51, 408-413, (1979). [link]

42.     Haugen, G.R., Richardson, H.J., Clarkson, J.E., and Hieftje, G.M. Laser Induced Fluorescence Extension to Non-Fluorescent Materials in New Concepts Symposium and Workshop on Detection and Identification of Explosives, Reston, VA, Oct. 30-Nov. 1. US Departments of Treasury, Energy, Justice, and Transportation, 249-251, (1978).

41.     Powell, L.A. and Hieftje, G.M., Computer Identification of Infrared Spectra by Correlation-Based File Searching. Anal. Chim. Acta, 100, 313-327, (1978). [link]

40.     Savage, R.N. and Hieftje, G.M., Enhancement of Pneumatic Nebulization Efficiency Through Application of an Electric Field. Rev. Sci. Instrum., 49, 1418-1424, (1978). [link]

39.     Boss, C.B. and Hieftje, G.M., A New, Accurate Method for the Measurement of Rise Velocities in Laminar Flames. Appl. Spectrosc., 32, 377-380, (1978). [link]

38.     Zander, A.T. and Hieftje, G.M., Determination of Trace Metals by Microwave Plasma Spectrometry with an Atmospheric Pressure Helium Discharge. Anal. Chem., 50, 1257-1260, (1978). [link]

37.     de Olivares, D.R. and Hieftje, G.M., Saturation of Energy Levels in Analytical Atomic Fluorescence Spectrometry - I.  Theory. Spectrochim. Acta, Part B, 33B, 79-99, (1978). [li

36.     Hieftje, G.M. and Copeland, T.R., Flame Emission, Atomic Absorption, and Atomic Fluorescence Spectrometry. Anal. Chem., 50, 300R-327R, (1978). [link]

35.     Cochran, R.L. and Hieftje, G.M., Device for Selective Spectral-Line Modulation Atomic Absorption Spectrometry. Anal. Chem., 50, 791-800, (1978). [link]

34.     Hunter, T.W. and Hieftje, G.M., Directly Digital Flow Controller with Rapid Response Time and High Precision. Anal. Chem., 50, 209-212, (1978). [link]

33.     Zander, A.T., Williams, R.K., and Hieftje, G.M., Modified Microwave-Induced Plasma Discharge Chamber. Anal. Chem., 49, 2372-2374, (1977). [link]

32.     Cochran, R.L. and Hieftje, G.M., Spectral and Noise Characteristics of a 300-Watt Eimac Arc Lamp. Anal. Chem., 49, 2040-2043, (1977). [link]

31.     Boss, C.B. and Hieftje, G.M., Calculation of the Velocity of a Desolvating Aerosol Droplet in an Analytical Flame. Anal. Chem., 49, 2112-2114, (1977). [link]

30.     Saturday, K.A. and Hieftje, G.M., Physical Characterization of the Helium-Oxygen-Acetylene Flame as an Atom Cell for Atomic Spectrometry. Anal. Chem., 49, 2013-2018, (1977). [link]

29.     Frazer, J.W., Hieftje, G.M., Layman, L.R., and Sinnamon, J.T., Integrating Analog-to-Digital Converter Displaying High Signal Fidelity and Noise Immunity. Anal. Chem., 49, 1869-1874, (1977). [link]

28.     Hieftje, G.M., Haugen, G.R., and Ramsey, J.M., New Method for the Determination of Luminescence Lifetimes by Using the Beat Noise of a CW Laser as a Multifrequency-Modulated Source. Appl. Phys. Lett., 30, 463-466, (1977). [link]

27.     Boss, C.B. and Hieftje, G.M. Influence of Droplet Desolvation, Particle Vaporization and Atomic Diffusion on the Distribution of Atoms in Analytical Flames and Plasmas in XX Colloquium Spectroscopicum Internationale - International Conference on Atomic Spectroscopy, Praha, Czechoslovakia. Bulletin of the Technical University, Prague, Czechoslovakia, 113-123, (1977).

26.     Cochran, R.L. and Hieftje, G.M., Selective Spectral-Line Modulation Technique for High Sensitivity Continuum-Source Atomic Absorption Spectrometry. Anal. Chem., 49, 98-105, (1977). [link]

25.     Sydor, R.J., Sinnamon, J.T., and Hieftje, G.M., Automatic Background-Correcting Spectrometer. Anal. Chem., 48, 2030-2033, (1976). [link]

24.     Hieftje, G.M., Copeland, T.R., and de Olivares, D.R., Flame Emission, Atomic Absorption, and Atomic Fluorescence Spectrometry. Anal. Chem., 48, 142R-174R, (1976). [link

23.     Sydor, R.J. and Hieftje, G.M., Inexpensive, Wavelength-Modulated Filter Flame Photometer. Anal. Chem., 48, 535-541, (1976). [link]

22.     Hieftje, G.M., Meeting Report:  Atomic Spectroscopy, 5th International Conference - Monash University, August 25-29, 1975. Appl. Opt., 14, 2779, (1975).

21.     Hunter, T.W., Sinnamon, J.T., and Hieftje, G.M., Evaluation of Unique Directly Digital Computer-Controlled and Hardware-controlled Automatic Titrators. Anal. Chem., 47, 497-502, (1975). [link]

20.     Hieftje, G.M. and Bystroff , R.I., An Investigation of Noise Spectra from Sheathed and Unsheathed Air-Acetylene Flames. Spectrochim. Acta, Part B, 30B, 187-201, (1975). [li

19.     Layman, L.R. and Hieftje, G.M., New, Computer-Controlled Microwave Discharge Emission Spectrometer Employing Microarc Sample Atomization for Trace and Micro Elemental Analysis. Anal. Chem., 47, 194-202, (1975). [link]

18.     Bastiaans, G.J. and Hieftje, G.M., Investigation into the Vaporization of Individual Solute Particles in Flame Spectrometry. Anal. Chem., 46, 901-910, (1974). [link]

17.     Clampitt , N.C. and Hieftje, G.M., Influence of Flame Gas Thermal Conductivity on Atom Formation in Flame Spectrometry. Anal. Chem., 46, 382-386, (1974). [link]

16.     Layman, L.R. and Hieftje, G.M., Device for the Accurate Electronic Measurement of Microliter Sample Volumes. Anal. Chem., 46, 322-323, (1974). [link]

15.     Bastiaans, G.J. and Hieftje, G.M., Evaluation and Application of a New High Precision "Null Point" Analytical Technique in Flame Spectrometry. Anal. Chem., 45, 1994-2001, (1973). [link]

14.     Hieftje, G.M., Bystroff , R.I., and Lim, R., Application of Correlation Analysis for Signal-to-Noise Enhancement in Flame Spectrometry:  Use of Correlation in Determination of Rhodium by Atomic Fluorescence. Anal. Chem., 45, 253-258, (1973). [link]

13.     Hieftje, G.M., Holder, B.E., Maddux, A.S., and Lim, R., Selection of Source-Modulation Waveform for Improved Signal-to-Noise Ratio in Atomic Absorption Spectrometry. Anal. Chem., 45, 238-245, (1973). [link]

12.     Holder, B.E., Lim, R., Maddux, A.S., and Hieftje, G.M., Modulated Power Supply for Hollow Cathode Light Sources. Anal. Chem., 44, 1716-1718, (1972). [link]

11.     Hieftje, G.M. and Mandarano, B.M., New, Directly Digital Automatic Titration Apparatus. Anal. Chem., 44, 1616-1621, (1972). [link]

10.     Hieftje, G.M. and Sydor, R.J., Application of a Wave-Length Modulation Device to Problems Concerning Spectrometer Misalignment. Appl. Spectrosc., 26, 624-632, (1972). [l

9.       Hieftje, G.M., Signal-to-Noise Enhancement Through Instrumental Techniques - II.  Signal Averaging, Boxcar Integration, and Correlation Techniques. Anal. Chem., 44, 69A-78A, (1972).

8.       Hieftje, G.M., Signal-to-Noise Enhancement Through Instrumental Techniques - I.  Signals, Noise, and S/N Enhancement in the Frequency Domain. Anal. Chem., 44, 81A-88A, (1972).

7.       Clampitt, N.C. and Hieftje, G.M., Investigation into the Mechanism of Desolvation of Sample Droplets in Flame Spectrometry. Anal. Chem., 44, 1211-1219, (1972). [link]

6.       Hieftje, G.M., Burner Design Criteria and Variables Affecting Flashback of Acetylene Flames. Appl. Spectrosc., 25, 653-659, (1971). [link]

5.       Hieftje, G.M. and Malmstadt, H.V., A New Approach to Flame Spectrometric Analysis Utilizing Isolated Droplets of Sample Solution. Anal. Chem., 41, 1735-1744, (1969). [lin

4.       Hieftje, G.M. and Malmstadt, H.V., A Unique System for Studying Flame Spectrometric Processes. Anal. Chem., 40, 1860-1867, (1968). [link]

3.   Thomas, J., Jr., Benson, G.S., and Hieftje, G.M. Measurement of the Surface Areas of Coals from the Dynamic Sorption of Carbon Dioxide in 152 National Meeting of the ACS, New York, NY, September. Illinois State Geological Survey, #1966-N, 1-8, (1966).

2.   Thomas, J., Jr. and Hieftje, G.M., Rapid and Precise Determination of Carbon Dioxide from Carbonate-Containing Samples Using Modified Dynamic Sorption Apparatus. Anal. Chem., 38, 500-503, (1966). [link]

1. Thomas, J., Jr., Hieftje, G.M., and Orlopp, D.E., Application of Continuous-Flow Apparatus to Thermal Decomposition and Sinter Studies.  Anal. Chem., 37, 762-763, (1965).
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