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Synthesis and Characterization of C18 Stationary Phases for the Liquid Chromatographic Separation of Polycyclic Aromatic Hydrocarbons

June 1, 1985

Author(s)

Lane C. Sander, Stephen A. Wise

Selective on-line deuteration in gas chromatography/mass spectrometry for the investigation of dissociative ionization of silicon-containing compounds

March 26, 1985

Author(s)

Anzor I. Mikaia, Vladimir G. Zaikin, Nikolay Ushakov, Valentin Vdovin

A Reaction GC-MS method is developed for on-line selective gas-phase deuteration of unsaturated silicon-containing compounds.

Carbon Analysis for the Study of Bonded Phases in Liquid Chromatography

March 1, 1985

Author(s)

B, I. Diamondstone, Stephen Wise, Lane C. Sander

Reaction Chromatography /Mass Spectrometry. 1. Gas chromatograph hydrogenation microreactor - mass Spectrometer system for the study of Olefins.

March 1, 1985

Author(s)

Anzor I. Mikaia, Vladimir Smetanin, Vladimir G. Zaikin

A GC-MS method for reliable structure elucidation of olefins is developed. The method includes application of hydrogen as a carrier and reagent gas, the spectra of hydrogenation products provide information on the structure of carbon skeleton.

Reaction gas chromatography - mass spectrometry. Communication 5. Determination of the position of a double bond in alkenes using selective deuteration in the column of a gas Chromatograph-mass spectrometer.

March 1, 1985

Author(s)

Anzor I. Mikaia, Vladimir Smetanin, Vladimir G. Zaikin, Valentin Vdovin

A GC-MS method is developed for the determination of double bond location in alkenes based on comparative analysis of the mass spectra of corresponding alkanes and their vicinal Dideutero-analogs obtained via online hydrogenation and selective deuteration

The Application of Pperdeuterated Polycyclic Aromatic Hydrocarbons (PAH) as Internal Standards for the Liquid Chromatographic Determination of PAH in a Petroleum Crude Oil Other Complex Mixtures

March 1, 1985

Author(s)

W F. Kline, Stephen Wise, Willie E. May

Quantification of Polycyclic Aromatic Hydrocarbons and Nitro-Substituted Polycyclic Aromatic Hydrocarbons and Mutagenicity Testing for the Characterization of Ambient Air Particulate Matter

January 1, 1985

Author(s)

Stephen A. Wise, S. N. Chesler, L.R. Hilpert, Willie E. May, R. E. Rebbert, C R. Vogt, M Nishioka, A Austin, J Lewtas

Characterization of Polycyclic Aromatic Hydrocarbons in Air Particulate Extracts by Liquid and Gas Chromatographic Methods

December 1, 1984

Author(s)

Willie E. May, S. N. Chesler, L.R. Hilpert, Harry S. Hertz, R. E. Rebbert, C.R. Vogt, Stephen A. Wise

Mass spectrometry of bioorganic molecules containing small carbocycles

December 1, 1984

Author(s)

Anzor I. Mikaia, Vladimir G. Zaikin

The abilities and limitations of mass spectrometry method in structure determination of bioorganic molecules containing three- and four-membered rings is discussed. Implementation of chemicals is considered.

Oxygen Removal in Liquid Chromatography Using Zinc/Oxygen Scrubber Column

December 1, 1984

Author(s)

William A. MacCrehan, Willie E. May

Investigation of steroid alcohols by reaction chromatography/mass spectrometry

November 1, 1984

Author(s)

Anzor I. Mikaia, Alla V. Antonova, Vladimir G. Zaikin, Nikolay A. Prostakov, Nikolay Vulfson, Igor Torgov

A GC-MS method is developed for structure determination of steroid alcohols. The method includes dehydrogenation of steroid alcohols on a copper powder at 325 oC.

The Pilot Environmental Specimen Bank Program

October 1, 1984

Author(s)

Stephen A. Wise, Rolf L. Zeisler

The use of on-line H/D exchange for the investigation of alcohols and carbonyl compounds by reaction gas chromatography/mass spectrometry.

October 1, 1984

Author(s)

Anzor I. Mikaia, Vladimir G. Zaikin, Alla V. Antonova, Nikolay A. Prostakov

On line H/D exchange is applied to carbonyl compounds prior mass spectrometry analysis on a GC column containing 10% KOD. This exchange reaction can be used for other compounds undergoing keto-enol tautomerism.

Reaction gas chromatography/mass spectrometry. 4structure elucidation of cyclic sulphides by gas chromatography/mass spectrometry with the use of on-line hydrodesulphurization.

September 1, 1984

Author(s)

Anzor I. Mikaia, Elena Trusova, Vladimir G. Zaikin, Naum Volinsky, Elena Karaulova, Gregory Galpern

A GC-MS method is developed for structure determination of thiacyclanes. It is based on online gas- phase hydro- and deutero-desulfurization on Raney nickel after GC separation and before MS analysis.

Mechanism of decomposition of methyl derivatives of Ni, Co, Cr and Pd

August 1, 1984

Author(s)

Anzor I. Mikaia, Natalya Kostitsyna, Ivan Oreshkin, BA Dolgoplosk, EI Tinyakova

Advantages of GC-MS is demonstrated for the study of the mechanisms of catalytic reactions.

Analysis of Human Liver Specimens in the U.S. Pilot National Environmental Specimen Bank Program

June 1, 1984

Author(s)

Rolf L. Zeisler, S H. Harrison, Stephen A. Wise

Operation of the U.S. Pilot National Environmental Specimen Bank Program

June 1, 1984

Author(s)

Stephen A. Wise, K. A. Fitzpatrick, S H. Harrison, Rolf L. Zeisler

Rection gas chromatography-mass spectrometry.VI.Use of deuterium as the carrier and reagent gas in reaction gas chromatography-mass spectrometry

April 30, 1984

Author(s)

Anzor I. Mikaia, Vladimir G. Zaikin

The use of deuterium as a carrier and reagent gas for structural determination of alkenes, cyclopropane compounds and cyclic sulphides by reaction GC-MS is described. Catalytic transformation of analytes is accomplished in an on-line gas-phase microreactor