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Search Publications by: Karen W. Phinney (Fed)

Displaying 76 - 94 of 94

Determination of Ephedrine Alkaloids in Dietary Supplement Standard Reference Materials

November 1, 2005

Author(s)

Lane C. Sander, Katherine E. Sharpless, Mary B. Satterfield, T. Ihara, Karen W. Phinney, Barbara J. Porter, James H. Yen, Stephen A. Wise, M. L. Gay, J. W. Lam, M. McCooeye, G. Gardner, C. Fraser, R. Sturgeon, M. C. Roman

Dynamically Coated Capillaries for Enantioselective Separations by Capillary Electrophoresis

November 1, 2005

Author(s)

Karen W. Phinney, Lane C. Sander

Enantioselective Separations by Packed Column Subcritical and Supercritical Fluid Chromatography

November 1, 2005

Author(s)

Karen W. Phinney

Quantitative Determination of Capsaicinoids by Liquid Chromatography-Electrospray Mass Spectrometry

November 1, 2005

Author(s)

Karen W. Phinney, R Q. Thompson, Michael J. Welch, Edward White

Reversed-Phase Liquid Chromatography and Argentation Chromatography of the Minor Capsaicinoids

November 1, 2005

Author(s)

Karen W. Phinney, R Q. Thompson, Lane C. Sander, Michael J. Welch

Dynamically Coated Capillaries for Enantioselective Separations by Capillary Electrophoresis

March 11, 2005

Author(s)

Karen W. Phinney, Lane C. Sander

A Thermodynamic Study of the Ketoreductase-Catalyzed Reduction of 2-Alkanones in Non-Aqueous Solvents

January 1, 2005

Author(s)

Yadu D. Tewari, Michele M. Schantz, Karen W. Phinney, J D. Rozzell

A Thermodynamic Study of the Ketoreductase-Catalyzed Reduction of 2-Alkanones in Non-Aqueous Solvents

January 1, 2005

Author(s)

Michele M. Schantz, Yadu D. Tewari, Karen W. Phinney, J D. Rozzell

Simultaneous Concentration and Separation of Enantiomers with Chiral Temperature Gradient Focusing

November 6, 2004

Author(s)

K M. Balss, Wyatt N. Vreeland, Karen W. Phinney, David J. Ross

A Thermodynamic and Time Course Study of the Lipase-Catalyzed Transesterification of Benzyl Alcohol and Butyl Acetate in Supercritical Carbon Dioxide Media

August 16, 2004

Author(s)

Yadu D. Tewari, T. Ihara, Karen W. Phinney, M P. Mayhew

The time course and thermodynamics of the lipase-catalyzed transesterification reaction (benzl alcohol + butyl acetate = benzyl acetate + 1-butanol) has been studied in supercritical carbon dioxide (SCCO 2), n-hexane, toluene, and neat media (no solvent

A Thermodynamic Study of the Lipase-Catalyzed Transesterification of Benzyl Alcohol and Butyl Acetate in Supercritical Carbon Dioxide Media

August 16, 2004

Author(s)

Karen W. Phinney, Yadu D. Tewari, T. Hara, M P. Mayhew

Chiral Separations by Temperature Gradient Focusing

February 1, 2004

Author(s)

K M. Balss, Wyatt N. Vreeland, Karen W. Phinney, Michael J. Tarlov, David J. Ross

Temperature gradient focusing (TGF) involves application of a temperature gradient across a microchannel or capillary. With an appropriate buffer, the temperature gradient creates a gradient in both the electric field and the electrophoretic velocity

Liquid Chromatographic Method for the Determination of Enantiomeric Composition of Amphetamine and Methamphetamine in Hair Samples

January 1, 2004

Author(s)

Karen W. Phinney, Lane C. Sander

Additive Concentration Effects on Enantioselective Separations in Supercritical Fluid Chromatography

March 5, 2003

Author(s)

Karen W. Phinney, Lane C. Sander

Polar additive concentration effects in supercritical fluid chromatography were studied on two chiral stationary phases, Chirobiotic V and Chiralpak AD. Two basic additives, isopropylamine and triethylamine, were incorporated into the methanol modifier at