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Publications


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Submitted or In Press

1
Howard, M.E. and Vocke, R.D. Jr., "A Closed System Digestion and Purification Procedure for the Accurate Assay of Chlorine in Fossil Fuels", submitted to Anal. Chem. submitted for publication.
2
Kelly, W.R., Long, S.E. and Stevens, R.K., "An Estimate of Mercury Emissions to the Atmosphere from U.S. Petroleum Refining", submitted to Environ. Sci. and Tech. submitted for publication.
3
Kelly, W.R., Long, S.E., and Mann, J.L., "Determination of Mercury in SRM Crude Oils and Refined Products by Isotope Dilution Cold-Vapor ICP-MS Using Closed-System Combustion", Anal. Bioanal. Chem. submitted for publication.
4
Kelly, W.R., Murphy, K.E., Becker, D.A., and Mann, J.L., "Determination of Cr in Certified Reference Material HISS-1, Marine Sediment, by Cold Plasma Isotope Dilution ICP-MS: Comparison of Microwave versus Closed (Carius) Tube Digestion", J. Anal. Atom. Spect. submitted for publication.
5
Kelly, W.R., "Low-Sulfur Motor Fuels: Modelling the Effect of Oil Consumption on the Total Sulfur Emission Budget by Monte-Carlo Simulation", Environ. Sci, and Tech. Accepted for publication (in press).
6
Long, S.E., and Vetter, T.W., "Determination of Sodium in Blood Serum by Inductively Coupled Plasma Mass Spectrometry", J. Anal. Atom. Spect. (in press).
7
Mann, J., Long, S.E., and W.R. Kelly, "Direct Determination of Mercury at Picomole/L Levels in Bottled Water by Isotope Dilution Cold-Vapor Generation Inductively Coupled Plasma Mass Spectrometry", Anal. Bioanal. Chem. submitted for publication.
8
Salit, M.L., Turk, G.C., "Establishing Traceability for the Calibration of Elemental Analysis", Anal. Chem. (in press).
9
Sieber, J.R., Yu, L.L., and Butler, T.A., "Traceability and Uncertainty in Alloy Analysis by Borate Fusion and XRF", submitted for publication.
10
Vocke, R.L., "A Closed System Digestion and Purification Procedure for the Accurate Assay of Chlorine in Fossil Fuels", Anal. Chem. Submitted for publication.
11
Winchester, M.R., "Standards and Reference Materials for Glow Discharge Spectroscopies", Chapter 12 in Glow Discharge Plasma in Analytical Spectroscopy, edited by R. Kenneth Marcus and Jose Broekaert, John Wiley & Sons, Book Chapter (2003).
12
Winchester, M.R., and Payling R., "Radio-Frequency Glow Discharge-A Critical Review", Spectrochim. Acta
13
Yu, L.L., Fassett, J.D., and Lindstrom, A.P., "Determination of Si in Standard Reference Material SRM 295x Silica on Filter", Journ. Anal. Atom. Spect. (in press).

 

2002

1
Christopher, S.J., Vander Pol, S. Pugh, R., Day, R., and Becker, P., "Determination of Mercury in the Eggs of Common Murres (Uria aalge) for the Seabird Tissue Archival and Monitoring Project", J. Anal. At. Spectrom., 17 780-785 (2002). Young Analytical Scientist Special Issue.
2
Elam, W.T., Ravel, B.D., and Sieber, J.R., "A New Atomic Database for X-Ray Spectroscopic Calculations", Rad. Phys. and Chem. 63, 121-128 (2002).
3
Fassett, J.D., and MacDonald, B.S., "Lead in the Environment: The Development and Certification of Standard Reference Materials to Assess and Assure Accurate Measurement", Fres. J. Anal. Chem 370, 838-842 (2001).
4
Kelly, W.R., and Vocke, R.D. Jr., and Mann, J.L. "Determination of Sulfur in BCR-1: Comment on "Determination of Total Sulfur at Microgram per Gram Levels in Geological Materials by Oxidation of Sulfur into Sulfate with in Situ Generation of Bromine Using Isotope Dilution High Resolution ICPMS Paper by A. Makishima and E. Nakamura", Anal. Chem. 74 6430-6431 (2003)
5
Long, S.E, and Kelly, W.R., "Accurate Determination of Mercury in Coal by Isotope Dilution Cold-Vapor Generation-Inductively Coupled Plasma Mass Spectrometry", Anal. Chem. 74 1477-1483 (2002).
6
Mann, J., Kelly, W.R., and MacDonald, B.S., "Observations of Anomalous Mass Loss Behavior in SRM Coals and Cokes on Drying", Anal. Chem. 74, 3585-3591 (2002).
7
Murphy, K.E., Long, S.E., Rearick, M.S., Ertas, O., "The Accurate Determination of Potassium and Calcium Using Isotope Dilution Inductively Coupled "Cold" Plasma Mass Spectrometry", J. Anal. At. Spectrom. 17 469-477 (2002).
8
Poplawski, A., Grabowski, B., Long, S.E. and Kelman, Z., "The Zinc-Finger Domain of the Archael MCM Protein is Required for Helicase Activity", Bio. Chem. 276, 49371-49377 (2001).
9
Sieber, J.R., "Matrix-Independent XRF Methods for Certification of Standard Reference Materials", Adv. X-Ray Anal. 45, 493-504 (2002).
10
Sieber, J.R., Broton, D., Fales, C., Leigh S.D., MacDonald, B.S., Marlow, A.F., Nettles, S.H, and Yen, J.H., "Standard Reference Materials for Cements", Cement and Concrete Research 32 1899-1906 (2002).
11
Yu, L.L., Fassett, J.D., and Guthrie, W.F., "Detection Limit of Isotope Dilution by Plasma Source Mass Spectrometry", Anal. Chem. 74, 3887 2002.

2001

1
Christopher, S.J., Long, S.E., Rearick, M.S, and Fassett, J.D., "Development of High Accuracy Vapor Generation Inductively Coupled Plasma Mass Spectrometry and its Application to the Certification of Mercury in Standard Reference Materials", Anal. Chem. 73, 2190-2199 2001.
2
Turk, G.C., Yu, L.L., Salit, M.L., and Guthrie, W.F., "Using High-Performance Spectrometric Methods for Calibration Transfer Between Environmental CRMs, Fres. J. Anal. Chem. 370, 259-263, 2001.
3
Winchester, M.R., Kelly, W.R., Mann, J.L., Guthrie, W.F., MacDonald, B.S. and Turk, G.C., "An Alternative Method for the Certification of S Mass Fraction in Coal Standard Reference Materials", Fres. J. Anal. Chem. 370, 234-240, 2001.
4
Winchester, M.R., and Miller, J.K. "Determination of Fifteen Elements in Grey Cast Irons Using Glow Discharge Optical Emission Spectrometry", J. Anal. At. Spectrom. 16, 122-128 2001.
5
Yu, L.L., Kelly, W.R., Fassett, J.D., and Vocke, R.D., "Determination of Sulfur in Fossil Fuels by Isotope Dilution Electrothermal Vaporization Inductively Coupled Plasma Mass Spectrometry", J. of Anal. At. Spectrom., 16, 140 2001.
6
Yu, L.L., Vocke, R.D. and Murphy, K.E., "Determination of As, Cd, Cr, and Hg in Indoor Dust by High Resolution Inductively Coupled Plasma Mass Spectrometry", Fres. J. Anal. Chem. 370, 834.

 

2000

1
Beck, II, C.M., "A Brief History of Inorganic Classical Analysis", in "The Australian Chemistry Resource Book", Vol. 10, 2000. Charles Sturt University Bathurst, New South Wales, Australia, March, 2000.
2
Lankosz, M., and Sieber, J.R., "A Simple Microbeam Profiling Technique for X-Ray Optics", Review of Scientific Instruments 71, Issue 7, 2640-2643 (2000).
3
Murphy, K.E., Beary, E.S., Rearick, M.S., and Vocke, R.D., ID ICP-MS for the Certification of PB and Cd in Environmental Standard Reference Materials". Fresenius J. Anal. Chem. 368, 4, 362-370 (2000).
4
Norman, B.R. and Becker, D.A., "Determination of Ultratrace Levels of Mercury in Three SRMs by Combustion RNAA," J. Radioanal. Nucl. Chem., 245, 91-95 (2000).
5
Salit, M.L., Vocke, R.D. and Kelly, W.R., "An ICP-OES Method with 0.2 % Expanded Uncertainties for the Characterization of LiAlO2, Anal. Chem. (2000).
6
Sieber, J.R., "X-Rays in Research and Development at the National Institute of Standards and Technology", X-Ray Spectro. 29 (5), 327 (2000).
7
Winchester, M.R., and Beck, C., "Availability of Layered Certified Reference Materials for Industrial Application of Glow Discharge Spectrometric Depth Profiling", Surf. Interface Anal., 27, 930-935 (1999).
8
Winchester, M.R., and Miller, J.K., "Drift-Corrected Calibration in Glow Discharge Optical Emission Spectrometry", J. Anal. At. Spectrom., 15, 169-175 (2000).
9
Yu, L.L., Turk, G.C. and Koirtyohann S.R., "Characterization of a Hydrogen Flame as an Ion Source for Mass Spectrometry," J. Anal. At. Spectrom. 14, 669, (1999).


1999

1
May, W.E., Gills, T., Parris, R., Beck, II, C., Fassett, J.D., Gettings, Greenberg, R.D., Guenther, F., Kramer, G., MacDonald, B.R., and Wise, S., "Definitions of Terms and Modes Used at NIST for Value-Assignment of Reference Materials for Chemical Measurements", NIST Spec. Publ. 260-136, (September 1999).
2
O'Hare, P.A.G., Beck II, C.M., Seifert, H.J., Tomaszkiewicz, I.; "Thermodynamics of silicon nitride. I. Standard molar enthalpies of formation at the temperature 298.15 K of alpha-Si3N4 and beta-Si3N4," Journal of Chemical Thermodynamics, 31, 303-322 (1999).
3
Yu, L.L., Turk, G.C. and Koirtyohann, S.R., "Characterization of a Hydrogen Flame as an Ion Source for Mass Spectrometry", J. Anal. Atomic Spectrometry, 669 (1999).
4
Skipor, A.K., Jacobs, J.J., Yu, L.L., and Black, J., "Comparison of Zeeman Background Corrected Atomic Absorption Spectrometric and Inductively Coupled Plasma Mass Spectrometric Detection of Trace Elements in Electrothermally Vaporized Serum", J. Biomed. Materials Research (Applied Biomaterials), 48, 90, (1999).
5
Schultz, M.K., Biegalski, S.R., Inn, K.G.W., Yu, L.L. Burnett, W.C. Thomas, J.L.W., and Smith, G.E., "Monitoring the Destructionof Carbon Phases in Soils and Sediments for Sequential Chemical Extractions", J. Environ. Monitoring, 1, 183 (1999).
6
Winchester, M.R., and Beck, U., "Availability of Layered Certified Reference Materials for Industrial Application of Glow Discharge Spectrometric Depth Profiling", Surf. Interface Anal., 27, 930-935 (1999).

1998

1
Winchester, M.R., "Development of a Method for the Determination of Phosphorus in Copper Alloys Using Radio-Frequency Glow Discharge Optical Emission Spectrometry", J. Anal. At. Spectrom., 13, 235-242 (1998).
2
Omenetto, N., Mermet, J. M., Turk, G.C., Moore, D.S.,et al. "Nomenclature, symbols, units and their usage in spectrochemical analysis - XIV - laser-based atomic spectroscopy: A new notation for spectrochemical processes - (IUPAC recommendations 1997)." Pure and Applied Chemistry, 70(2): 517-526 (1998).
3
Salit, M. L. and G. C. Turk, "A drift correction procedure." Anal. Chem. 70, 3184-3190 (1998).
4
Morgan, J. W., Walker, R. J., Smoliar, M. I., Beary, E. S., and Baedecker, P. A., "The Coupled 190Pt-186Os and 187Re-187Os Isotopic Systems; Detection of Possible Core-Mantle Interaction and Estimation of Sulphur in the Outer Core", Lunar and Planetary Science, XXVIII, 977-978 (1998).
5
Beck II, C. M., "Example of a traceability protocol to the SI by gravimetric analysis," Accred. Qual. Assur., 3, 482-484 (1998).
6
Epstein, M.S., Buehler, B., and Bullard, M., "Evaluation of the precision and accuracy of an automated sample introduction accessory for the flame atomic absorption spectrometric measurement of calcium in serum", Talanta, 47, 95-102 (1998).
7
Phinney, C.S., Murphy, K.E., Welch, M.J., Ellerbe, P., Long, S.E., Pratt, K.W., Rearick, M.S., Schiller, S., Sniegoski, L., Vetter, T.W., and Vocke, Jr., R.D., "Definitive Method Certification of Clinical Analytes In Lyophilized Human Serum: NIST Standard Reference Material (SRM) 909b", Fresenius J Anal Chem. (1998) 361: 71 -80.
8
Hoff, J.W., Borgoul, P.V., Tuncel, G., Ondov, J.M., Kelly, W.R., and Chen, L.T., J. Air Waste Manage., 48, 721-728 (1998).

 

1997

1
Beary, E.S., Paulsen P. J., Fassett, J.D., and Jassie, L.B., "ID-ICPMS Determination of Environmental Lead Using Continuous Flow Microwave Digestion", Anal. Chem., 69 (1997).
2
Walker, R.J., Morgan, J.W., Beary E.S., Smoliar, M.I., Czamanske, G.K., Horan, M.F.,"Application of the 190Pt-186Os isotope system to geochemistry and cosmochemistry," Geochimica and Cosmochimica Acta, 61, 4799-4808 (1997).
3
Beck II, C. M., Moody, J. R., Sample Preparation in Analytical Chemistry, chapter in, The Handbook of Instrumental Techniques for Analytical Chemistry, Frank Settle, general editor, New York: Prentice Hall, 1997.
4
Beck II, C. M., "Toward a revival of classical analysis," Metrologia, 34, 19-30 (1997).
5
Tomaszkiewicz, I.; Hope, G.A.; Beck II, C.M. and O'Hare, P.A.G., "Thermodynamic properties of silicides VI. Pentamolybdenum trisilicide, (Mo5Si3). Fluorine combustion calorimetric determination of the standard molar enthalpy of formation at the temperature 298.15 K," Journal of Chemical Thermodynamics, 29, 1, 87-98 (1997).
6
Watters, Jr., R.L., Eberhardt, K.R., Beary, E.S. and Fassett, J.D., "Isotope Dilution Using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) as a Primary Method," Metrolgia, 34, 87-96 (1997).
7
Pella, P.A. and M. Lankosz, "Highlights of X-Ray Spectrometry for Microanalysis", X-Ray Spectrometry, 26(6), 327 (1997).
8
Lankosz, M. and P. A. Pella, "A New Approach to Quantitative X-Ray Microfluorescence Analysis of Individual Particles", X-Ray Spectrometry, 26, 347 (1997).
9
Winchester, M.R., and Maul, C., "On the Determination of Carbon, Phosphorus, Sulfur, and Silicon in Grey Cast Irons Using Glow Discharge Optical Emission Spectrometry", J. Anal. At. Spectrom., 12, 1297-1305 (1997).
10
Winchester, M.R., "Radio-Frequency Discharge" (Chapter 5) in Glow Discharge Optical Emission Spectrometry, ed. Payling, R., Jones, D.G. and Bengston, A., John Wiley & Sons, Ltd., Sussex, 1997.
11
Salit, M.L. and Griesmeyer, J.M., "System-ready Behaviors for Integration", Lab Robotics Automat., 9, 113-118 (1997).
12
Norman, B.R. and Iyengar, V, "The Application of Preirradiation Combustion and Neutron Activation Analysis Technique for the Determination of Iodine in Food and Environmental Reference Materials", Biol. Trace Elem. Res., 63, 221-229 (1998).
13
Xiao, Y.K., Vocke, R.D., Swihart, G.H., et al., "Boron Volatilization and its Isotope Fractionization during Evaporation of Boron Solution", Anal. Chem., 69, 5203-5207 (1997).
     

1996

1
Tomaszkiewicz, I., Hope, G.A., Beck II, C.M. and O'Hare, P.A.G., "Thermodynamic properties of silicides V. Fluorine-combustion calorimetric determination of the standard molar enthalpy of formation at the temperature 298.15 K of trimolybdenum monosilicide Mo3Si and a critical assessment of its thermodynamic properties," Journal of Chemical Thermodynamics, 28, 29-42 (1996).
2
Xiong, X., Hutchinson, J.M.R., Hess, K.R., Fassett, J.D., and Lucatorto, T.B. "A Novel Approach to Resonance Ionization Mass Spectrometry Employing a Glow Discharge Source," Spectrochim. Acta B, 51, 1463-1472 (1996).
3
Sansonett, C.J., Salit, M.L. and Reader, R., "Wavelengths of Spectral Lines in Mercury Pencil Lamps", Appl. Opt., 35 74-77 January (1996).
4
Salit, M.L., Travis, J.C. and Winchester, M.R., "Practical Wavelength Calibration Considerations for UV-Visible Fourier-Transform Spectroscopy", Appl. Opt,. 35, 2960-2970 (1996).
5
Travis, J. C. and Turk, G.C. (Eds.), "Laser-Enhanced Ionization Spectrometry", Wiley Press, New York, (1996).
6
Travis, J. C. and Turk, G.C., "Fundamental Mechanisms of Laser-Enhanced Ionization Signal Detection", Chapter 2 in Laser-Enhanced Ionization Spectrometry, J.C. Travis and G.C. Turk (Eds.), Wiley Press, New York, NY 99-159 (1996).
7
Turk, G.C., "Analytical Performance of Laser-Enhanced Ionization Spectrometry", Chapter 3 in Laser-Enhanced Ionization Spectrometry, J.C. Travis and G.C. Turk (Eds.), Wiley Press, New York, NY 161-211 (1996).
8
Winchester, M.R., "Optically-Induced Analytical Error in Glow Discharge Optical Emission Spectrometry," Appl. Spectrosc. 50, 245-251 (1996).
9
Winchester, M.R. and Marcus, R.K., "Investigations of Self-Absorption in a Radio-Frequency Glow Discharge Device", Spectrochim. Acta 51B, 839-850 (1996).
   

1995

1
Epstein, M., Smith, S., Breen, J., "Application of a Novel Slurry Furnace AAS Protocol for Rapid Assessment of Lead Environmental Contamination", Chapter 30 in Lead Poisoning: Exposure, Abatement, Regulation, J.J. Breen and C.R. Stroup, eds., CRC Press, Boca Raton, FL, 1995.
2
Kane, J.S., Beary, E.S., Murphy, K.E., Paulsen, P.J., "Impact of ICP-MS on Certification Programs for Geochemical Reference Materials", Analyst, 120 (1995).
3
Beary, E.S., and Paulsen, P.J., " ICPMS Determination of Pt, Pd, Rh and Pb in Spent Auto Catalysts," Anal. Chem., 67 (1995).
4
Vetter, T.W., Beck II, C.M., Pratt, K.W., Turk, G.C., and Butler, T.A., "Using Instrumental Techniques to Increase the Accuracy of Classical Analyses, Part 1. The Gravimetric Determination of Sulfate," The Analyst, 120, 7, (1995).
5
Tomaszkiewicz, I., O'Hare, P.A.G., Hope, G.A., and Beck II, C.M., "Thermodynamic Properties of Silicides IV. Determination of the standard molar enthalpy of formation at the temperature 298.15 K of pentatungsten trisilicide of composition W5Si3 and W5Si3.115 by fluorine-combustion calorimetry," Journal of Chemical Thermodynamics, 27, 585-596 (1995).
6
Fassett, J.D., "Inorganic Isotope Dilution Analysis with Radioactive and Stable Isotopes", Pure Appl. Chem., 67, 1943-1949 (1995).
7
Murphy, K. E., Paulsen, P. J., "The Determination of Lead in Blood Using Isotope Dilution Inductively Coupled Plasma Mass Spectrometry", Fresenius J Anal Chem, 352, 203 - 208 (1995).
8
Kane, J.S., Beary, E.S., Murphy, K.E., and Paulsen, P.J., "Impact of Inductively Coupled Plasma Mass Spectrometry on Certification Programs for Geochemical Reference Materials", Analyst, 120, 1505 - 1512 (1995).
9
Lankosz, M. and Pella, P. A., "A Procedure Using Polychromatic Excitation and Scattered Radiation for Matrix Correction in X-Ray Microfluorescence Analysis", X-Ray Spectrometry, 24,, 320 (1995).
10
Lankosz, M. and Pella, P. A., "Quantitative Analysis of Individual Particles by X-Ray Microfluorescence Spectrometry", X-Ray Spectrometry, 24,, 327 (1995).
11
Madden, S. P., Hueber, D. M., Smith, B.W., Winefordner, J.D., and Turk, G.C. "Influence of an Electric-Field On the Emission and Absorption of Atoms and Ions in a Flame.", Appl. Spectrosc. 49, 1137-1141 (1995).
12
Winchester, M.R. and Salit, M.L., "Design and Initial Characterization of a Glow Discharge Atomic Emission Instrument for Macro-scale Elemental Composition Mapping of Solid Surfaces," Spectrochim. Acta 50B, 1045-1058 (1995).

   

1994

1
Beary, E. S., Paulsen P. J., "Determination of Ultra Trace Neodymium in High Purity Lanthanum Compounds By High Accuracy Isotope Dilution ICP-MS Analyses", Anal. Chem., 66 (1994).
2
Beck II, C.M., "Classical Analysis: A Look at the Past, Present, and Future," Anal. Chem., republication of 1991 A-page Report in special commemorative issue, 66, 224A-239A, (1994).
3
Epler, K.S., O'Haver, T.C. and Turk, G.C., Liquid Chromatography - Laser-Enhanced Ionization Spectrometry for the Speciation of Organolead Compounds, J. Anal. Atom. Spectrom., 9 (1994) 79-82.
4
Epstein, M. S., Turk, G.C., Yu, L.J.,"A Spectral Interference in the Determination of Arsenic in High-Purity Lead and Lead-Base Alloys Using Electrothermal Atomic-Absorption Spectrometry and Zeeman-Effect Background Correction." Spectrochimica Acta Part B-Atomic Spectroscopy 49, 1681-1688 (1994).
5
Beary, E.S., Paulsen, P.J., and Fassett, J.D., "Sample Preparation Approaches for Isotope Dilution ICP-MS Certification of Reference Materials", J. Anal. Atom. Spec., 9, 1363-1369 (1994).
6
Fassett, J.D., Beary, E.S., Xiong, X., and Moore, L.J., "Comparative Strategies for Correction of Interferences in Isotope Dilution Mass Spectrometric Determination of Vanadium", Anal. Chem., 66, 1027-1031 (1994).
7
Fassett, J.D. and Watters, Jr., R.L., "Traceability to the Mole: A New Initiative by CIPM", in Reviews of Analytical Chemistry - Euroanalysis VIII, D. Littlejohn, Ed., Royal Society of Chemistry, pp. 13-19 (1994).
8
Kelly, W.R., Paulsen, P.J., Murphy, K.E., Vocke, R.D., and Chen, L.T., "Determination of Sulfur in Fossil Fuels by Isotope Dilution Thermal Ionization Mass Spectrometry", Anal. Chem. , 66, 1994, 2505.
9
Lankosz, M. and P. A. Pella, "An Analytical Algorithm for Correction of Edge Effects in X-Ray Microfluorescence Analysis of geological Samples", X-Ray Spectrometry, 23(4), 169 (1994).
10
Lankosz, M. and P. A. Pella, "Investigation of Geometrical Effects in X-Ray Microfluorescence Analysis of Geological Samples", Advances In X-Ray Analysis 37, 685, J. V. Gilfrich, et al., eds., Plenum Press, New York, 1994.
11
Pella, P. A., J. R. Devoe, and A. F. Marlow, "Development of NIST Standard Reference Materials for Lead in Blood, Paint, Household Dust, Soil, and Simulated Bone", ASTM STP 1226, M. E. Bears and S. D. Allen Iske, eds., American Society for Testing and Materials, Philadelphia, 1994.
12
Deng, Q. S., Turk, G.C., D.R. Brady, Q.R. Smith,"Evaluation of Brain Element Composition in Alzheimers-Disease Using Inductively-Coupled Plasma-Mass Spectrometry." Neurobiology of Aging, 15, S113-S113 (1994)
13
Turk, G. C., Yu, L. J., and Koirtyohann, S.R. "Laser-Enhanced Ionization Spectroscopy of Sodium Atoms in an Air Hydrogen Flame With Mass-Spectrometric Detection." Spectrochimica Acta Part B-Atomic Spectroscopy, 49, 1537-1543 (1994).
14
Yu, L. J., Koirtyohann, S. R., Turk, G.C., and Salit, M.L., "Selective Laser-Induced Ionization in Inductively-Coupled Plasma-Mass Spectrometry." Journal of Analytical Atomic Spectrometry, 9, 997-1000 (1994).
15
Salit, M.L., Collins, J.B., and Yates, D.A., "Heuristic and Statistical Algorithms for Automated Emission Spectral Background Intensity Estimation", Appl. Spectrosc., 48, 915-925 (1994).
16
Salit, M.L., Guenther, F.R., Kramer, G.W. et al., "Integrating Automated Systems with Modular Architecture, Anal. Chem., 66, A361-A367 (1994).
     

1993

1
Beary E. S., Paulsen P. J., "Selective Application of Chemical Separations to Isotope Dilution Inductively Coupled Plasma Mass Spectrometric Analyses of Standard Reference Materials", Anal. Chem., 65, (1993).
2
Beck II, C.M., Salit, M.L., Watters R.L., Jr., Butler T.A., and Wood, L.J., "The Preparation and Certification of a Rhodium Standard Reference Material Solution," Anal. Chem., 65, 2899-2902 (1993).
3
Bowers, G.N., Fassett, J.D., and White V, E., "IDMS and the NATIONAL REFERENCE SYSTEM: Accuracy Transfer in Clinical Chemistry", Anal. Chem., 65, 475R-479R (1993).
4
Epstein, M.S.; Saraswati R.; and Beck II, C.M., "Determination of Mercury in a Zinc Ore Reference Material using Flow Injection and Atomic Absorption Spectrometry," Talanta, 40, 1477-1480 (1993).
5
Fox, R. W., Weimer, C. S., Hollberg, L., and Turk, G.C. "The Diode-Laser As a Spectroscopic Tool." Spectrochimica Acta Reviews, 15, 291-299 (1993).
6
Kelly, W. R., Vocke, Jr., R. D., Sieber, J. R., and Gills, T. E., "Certification of Sulfur in SRM 2724 Diesel Fuel Oil by Isotope Dilution Mass Spectrometry and X-Ray Fluorescence", Fuel, 72, 1567 (1993).
7
Lankosz, M., B. Holynska, and P. A. Pella, "Experimental Verification of a Monte Carlo Method for X-Ray Microfluorescence Analysis of Small Particles", X-Ray Spectrometry, 22(1), 54 (1993).
8
Lankosz, M., Holynska, B., Pella, P. A., and Blackburn, D. H., "Research in the Quantitative Analysis of Individual Particles by X-Ray Fluorescence Spectrometry", Advances In X-Ray Analysis, 36, 11, J. V. Gilfrich, et al., eds., Plenum Press, New York (1993).
9
O'Hare, P.A.G., Hope, G.A., and Beck II, C.M., "A new value for the standard molar enthalpy of formation of silicon sesquitelluride Si2Te3 at the temperature 298.15 oK by combustion calorimetry in fluorine, and an assessment of the results of previous studies that lead to (Si2Te3)," Journal of Chemical Thermodynamics, 25, 919-928, (1993).
10
P. A. Pella, E. B. Steel, W. R. Kelly and K.E. Murphy, "Zinc Sulfide Standard Reference Thin Film for X-Ray Fluorescence Spectrometry", In Advances in X-Ray Analysis; J.V. Gilfrich et al., Ed.; Plenum Press, New York, 1993, p.273.
11
Travis, J.C., Winchester, M.R., Salit, M.L., Wythoff, B.J. and Scheeline, A., "UV/Visible Fourier Transform Spectroscopy Using an Inductively-Coupled Plasma: Dual-Channel Noise Cancellation," Spectrochim. Acta, 48B, 691-709 (1993).
12
Winchester, M.R., Travis, J.C. and Salit, M.L., "Fourier Transform Atomic Emission Studies Using a Glow Discharge as the Emission Source," Spectrochim. Acta, 11, 1325-1337 (1993).
13
Winchester, M.R., Duckworth, D.C. and Marcus, R.K., "Analysis of Nonconducting Samples" (chapter 7) in Spectrochemical Analysis Through Glow Discharge Spectroscopies, ed. by Marcus R.K., Plenum Publishing, New York, 1993.
   

1992 and prior years

1
Kelly, W.R., and Murphy, K.E. , "Determination of Sulfur in SRM Bauxite and Sediment Samples By Isotope Dilution Thermal Ionization Mass Spectrometry", Geostandards Newsletter, 16, 3 (1992).
2
Ebel, H., H. Wiederschwinger, J. Wernisch, and P. A. Pella, "An Algorithm for the Description of White and Characteristic Tube Spectra (11 = Z = 83, 10 keV = E0 = 50 keV)", Advances In X-Ray Analysis 35, 721, C. S. Barrett, et al., eds., Plenum Press, New York, 1992.
3
Turk, G. C. "Imaging the Active Flame Volume For Pulsed Laser-Enhanced Ionization Spectroscopy." Anal. Chem. 64, 1836-1839 (1992).
4
Turk, G. C., "Laser-Induced Fluorescence of Atoms in a Power-Modulated Inductively Coupled Plasma For Trace Detection and Diagnostic Study." Appl. Spectrosc., 46, 1223-1225 (1992).
5
Turk, G. C., "Spatially Selective Detection of Anomalous Contributions to Laser-Enhanced Ionization in Flames." Institute of Physics Conference Series, 128, 157-160 (1992).
6
Turk, G. C., Yu, L. J., Watters, R.L., Travis, J.C. "Laser-Induced Ionization of Atoms in a Power-Modulated Inductively Coupled Plasma." Appl. Spectrosc., 46, 1217-1222 (1992).
7
Winchester, M.R. and Marcus, R.K., "Emission Characteristics of a Pulsed, Radio-Frequency Glow Discharge Atomic Emission Device," Anal. Chem., 64, 2067-2074 (1992).
8
Beck II, C. M. "Classical Analysis: A Look at the Past, Present, and Future," Anal. Chem. A-page Report, Vol. 63, 993A-1003A, (1991).
9
Epstein, M. S., "The Independent Method Concept for Certifying Chemical-Composition Reference Materials", Spectrochim. Acta, 46B, 1583 (1991).
10
Moody, J. R., and Epstein, M. S., "Definitive Measurement Methods", Spectrochim. Acta, 46B, 1571 (1991).


 

    BulletA Drift Correction Procedure PDF Logo

    A procedure is introduced that can mitigate the deleterious effect of low-frequency noises often termed drifts on the precision of an analytical experiment. This procedure offers several performance benefits over traditional designs based on the periodic measurement of standards to diagnose and correct for variation in instrument response. Using repeated measurements of every sample as a drift diagnostic, as opposed to requiring the periodic measurement of any given sample or standard, the analyst can better budget the measurement time to be devoted to each sample, distributing it to optimize the uncertainty of the analytical result. The drift is diagnosed from the repeated measurements, a model of the instrument response drift is constructed, and the data are corrected to a "drift-free" condition. This drift-free condition allows data to be accumulated over long periods of time with little or no loss in precision due to drift. More than 10-fold precision enhancements of analytical atomic emission results have been observed, with no statistically significant effects on the means. The procedure is described, performance data are presented, and matters regarding the procedure are discussed.

    Authors: Marc L. Salit and Gregory C. Turk
    Analytical Chemistry, 70, 3184-3190 (1998)

Bullet The Independent Method Concept for Certifying Chemical-Composition Reference Materials

Certified values for chemical-composition reference materials are often derived from results generated by two or more independent and reliable measurement methods. This paper examines the concept of method independence from both philosophical and practical standpoints, drawing examples from actual certification data. Methods are compared based on specific criteria and an attempt is made to define the degree of independence necessary to qualify methods as independent.

Author: Michael S. Epstein
Spectrochimica Acta, Vol. 46B, pp. 1583-1591 (1991).

Bullet Definitive Measurement Methods

This paper describes the use of "definitive" methods in the certification of reference materials. The definitions, variations, and limitations of definitive methods are considered and related to analytical methods considered to be definitive.

Authors: John R. Moody and Michael S. Epstein
Spectrochimica Acta, Vol. 46B, pp. 1571-1575 (1991).

BulletClassical Analysis: A Look at the Past, Present, and Future PDF Logo

The purpose of this paper is to identify and discuss the scope of classical analysis, and to explore why its renewal is important. The histories of gravimetry and titrimetry are traced, including biographical sketches of some of the important personalities in the development of classical analysis in Europe and the United States. The significance of the events surrounding the Karlsruhe Congress of 1860 is discussed, and the importance of the application of physical chemistry to the development of classical analysis is examined. Some reasons for the present bleak condition of classical analysis in the United States are discussed, together with the consequences for industrial, governmental, and private analytical laboratories. Possibilities for the future of classical analysis are discussed, with particular emphasis on the renewal of chemical separations and the combined use of instrumental and classical determinations. The paper is concluded with a proposal for the renewal of education in classical analysis.

Author: Charles M. Beck II
Analytical Chemistry, A-page Report, Vol. 63, No. 20, pp. 993A-1003A, Oct. 15, 1991.

Bullet Practical Wavelength Calibration Considerations for UV-visible Fourier-Transform Spectroscopy

The intrinsic wavelength scale in a modern reference laser-controlled Michelson interferometer -- sometimes refered to as the Connes advantage -- offers excellent wavelength accuracy with relative ease. Truly superb wavelength accuracy, with total relative uncertainty in line position of the order of several parts in 10^8, should be within reach with single-point, multiplicative calibration. The need for correction of the wavelength scale arises from two practical effects: the use of a finite aperature, from which off-axis rays propagate through the interferometer, and imperfect geometric alignment of the sample beam with the reference beam and the optical axis of the moving mirror. Although an analytical correction can be made for the finite-aperature effect, calibration with a trusted wavelength standard is typically used to accomplish both corrections. Practical aspects of accurate calibration of an interferometer in the UV-visible region are discussed. Critical issues regarding accurate use of a standard external to the sample source and the evaluation and selection of an appropriate standard are addressed. Anomalous results for two different potential wavelength standards measured by Fabry-Perot interferometry (Ar II and 198Hg I) are observed.

Authors: Marc L. Salit, John C. Travis, and Michael R. Winchester
Applied Optics, Vol. 35, pp. 2960-2970 (1996).

Bullet Toward a Revival of Classical Analysis

Among the analytical methods used to determine chemical composition, there are two special methods based on reaction chemistry. These are gravimetry and titrimetry, and taken together they are called classical analysis. They are special because they lead directly to independent values of chemical quantities expressed in SI units. Gravimetry and titrimetry can be performed in such a way that their operation is completely understood, and all significant sources of error in the measurement process can be evaluated and expressed in SI units together with a complete uncertainty budget. Such chemical measurements are metrologically valid and stand alone. They have no need to be compared with a reference material of the quantity being measured and therefore are called definitive or primary methods. In this paper the basic equations and terms of gravimetry and titrimetry are discussed, together with detailed examples of each. This is followed by a discussion of the errors associated with gravimetry and titrimetry, and instrumental techniques that can be used for evaluating these errors. There is also a discussion of the uncertainties associated with both systematic and random errors in gravimetry and titrimetry. The paper is underpinned by historical sketches of several important issues and scientists connected with the development of classical analysis. A case is made for a revival of the use of classical analysis in chemical metrology, together with some suggestions as to how such a revival might be implemented.

Author: Charles M. Beck II
Metrologia, Vol. 34, No. 1, pp. 19-30, Feb. 1997.


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