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Separation of Carotenoid Isomers by Capillary Electrochromatography with C 30 Stationary Phases

August 15, 1999

Author(s)

Lane C. Sander, M. Pursch, B. Marker, Stephen A. Wise

Comparison of Backbone Dynamics of Oxidized and Reduced Putidaredoxin by 15 N NMR Relaxation Measurements

August 3, 1999

Author(s)

Fahriye N. Sari, Marcia J. Holden, M P. Mayhew, V L. Vilker, B Coxon

The backbone dynamics of uniformly 15N-labeled reduced and oxidized putidaredoxin (Pdx) have been studied by 2D 15N NMR relaxation measurements. 15N T 1 and T 2 values and 1H- 15N NOE s have been measured for the diamagnetic region of the protein. These

Kinetic Characterization of Chiral Biocatalysis of Cycloarenes by the Camphor 5-Monooxygenase Enzyme System

June 15, 1999

Author(s)

D A. Grayson, V L. Vilker

Redox enzyme mediated biocatalysis has the potential to regio - and stereo-specificity oxidive hydrocarbons producing valuable products with minimal by-product formation. In-vitro reactions of the Camphor (cytochrome P-450) 5-monooxygenase enzyme system

NIST/NOAA NS&T/EPA EMAP Intercomparison Exercise Program for Organic Contaminants in the Marine Environment: Description and Results of 1998 Organic Intercomparison Exercises Mussel Tissue IX and Marine Sediment VIII

June 1, 1999

Author(s)

Michele M. Schantz, Reenie M. Parris, Stephen A. Wise

Thermodynamics of the Lipase-Catalyzed Esterification of 1-Dodecanoic Acid with (-)-menthol in Organic Solvents

June 1, 1999

Author(s)

Yadu D. Tewari, Michele M. Schantz, David J. Vanderah

Comparison of Zeeman Background Corrected Atomic Absorption Spectrometric and Inductively Coupled Plasma Mass Spectrometric Detection of Trace Elements in Electrothermally Vaporized Serum

May 1, 1999

Author(s)

A K. Skipor, J J. Jacobs, Lee L. Yu, J Black

Proceedings - International Workshop on Green Chemistry and Engineering: Global Collaborations

May 1, 1999

Author(s)

Ellyn S. Beary

The 2nd Annual Green Chemistry and Engineering Conference was held in Washington, DC in early July, 1998. After two days of technical presentations by international experts on cutting-edge technological advances in sustainable chemistry and engineering, a

Dynamical Diffraction and X-Ray Standing Waves from Atomic Planes Normal in a Twofold Symmetry Axis of the Quasicrystal A1PdMn

April 1, 1999

Author(s)

Terrence J. Jach, Yanbao Zhang, R. Colella, M. De Boissieu, M. Boudard, A. I. Goldman, T Lograsso, D W. Delaney, S. Kycia

We have observed dynamical diffraction in the [024024] and[046046] reflections of the icosahedral quasicrystal A1PdMn in the back-reflection geometry (θ B = 90 ). The x-ray fluorescence from the Al and Pd atoms exhibits strong standing wave behavior

Quantitative Absorption Measurements Using Cavity Ringdown Spectroscopy With Pulsed Lasers

April 1, 1999

Author(s)

J P. Looney, Joseph T. Hodges, Roger D. van Zee

The theory and implementation of quantitative gas phase absorption measurements based on cavity-ringdown spectroscopy with pulsed lasers is discussed. The response of ringdown cavities is modeled using an eigenmode description of the electromagnetic field

Evaluation of Analytical Methodologies for Non-Intrusive Drug Testing--Supercritical Fluid Extraction of Cocaine from Hair

March 1, 1999

Author(s)

J F. Morrison, L T. Sniegoski, W J. Yoo, Alim A. Fatah

Supercritical fluid extraction (SFE) was investigated as an environmentally friendly alternative to currently used wet chemical procedures in hair drug testing protocols. The SFE behavior of cocaine and its primary metabolite benzoylecgonine was studied

Restrictor Plugging in Off-Line Supercritical Fluid Extraction of Environmental Samples: Microscopic, Chemical, and Spectroscopic Evaluations

March 1, 1999

Author(s)

S. H. Page, Bruce A. Benner Jr, John A. Small, Steven J. Choquette

Thermodynamics of the Second Dissociation Constant and Standards for pH of 3-(N-Morpholino) Propanesulfonic Acid (MOPS) Buffers from 5 to 55 EC

December 16, 1998

Author(s)

R.N. Roy, D.R. Mrad, P.A. Lord, J.A. Carlsten, W.S. Good, P. Allsup, L.N. Roy, K.M. Kuhler, W Koch, Yung C. Wu

Electron Transfer between Surface ?}confined Cytochrome c and an N-acetylcystein-modified Gold Electrode

December 8, 1998

Author(s)

T Ruzgas, L S. Wong, Adolfas Gaigalas, V L. Vilker

Determination of Arsenic Compounds in Marine Mammals with High Performance Liquid Chromatography and Inductively Coupled Plasma Mass Spectrometer as Elecment Specific Detector

December 4, 1998

Author(s)

W. A. Goessler, A Rudorfer, Elizabeth A. Mackey, Paul R. Becker, K J. Irgolic

Nitrogen Distribution Measurements by Neutron Induced Autoradiography

December 1, 1998

Author(s)

Z En, J S. Brenizer, B Hostica, J Gao, D. A. Becker

Nuclear Reaction Prompt Gamma-Ray Analysis

December 1, 1998

Author(s)

G L. Molnar, Richard M. Lindstrom

Separation of Green Tea Catechins by Micellar Electrokinetic Capillary Chromatography

December 1, 1998

Author(s)

Bryant C. Nelson, Jeanice M. Brown Thomas, Stephen Wise, J. J. Dalluge

Unique Mobility Profiles Permit Automated Identification of Point Mutations by Capillary Electrophoresis SSCP

December 1, 1998

Author(s)

M H. Wenz, S Ramachandra, Donald H. Atha, M Worwood

Synthesis and Characterization of Self-assembled Monolayers of Alkylated 1-Thiahexa(ethylene oxide) Compounds on Gold

November 24, 1998

Author(s)

David J. Vanderah, Curtis W. Meuse, Vitalii I. Silin, Anne L. Plant

Optical Wedge Effects in Instruments and Standards for Molecular Absorption Spectrophotometry

November 1, 1998

Author(s)

John C. Travis, Melody V. Smith, Gary W. Kramer

Combined Spectroscopic Ellipsometry and Voltammetry of Tetradecylmethyl-viologen Films on Gold

October 27, 1998

Author(s)

Vytautas Reipa, H G. Monbouquette, V L. Vilker

Vibrationally-Resolved Sum-Frequency Generation With Broad Bandwidth Infrared Pulses

October 15, 1998

Author(s)

Lee J. Richter, T Petralli-Mallow, John C. Stephenson

We present a novel procedure for vibrationally-resolved sum-frequency generation (SFG) in which a broad-bandwidth IR pulse is mixed with a narrow-bandwidth visible pulse. The resultant SFG spectrum is dispersed with a spectrograph and detected in parallel

Nucleoside Diphosphate Kinase from Bovine Retina: Purification, Subcellular Localization, Molecular Cloning, and Three-dimensional Structure

October 6, 1998

Author(s)

N G. Abdulaev, G N. Karaschuk, Jane E. Ladner, D L. Kakuev, A V. Yakhyaev, M. Tordova, I O. Gaidarov, V I. Popov, J H. Fujiwara, D Chinchilla, E Eisenstein, G L. Gilliland, K D. Ridge

Critical Viscosity of the Ionic Mixture Triethyl n-Hexyl Ammonium Triethyl n-Hexyl borate in Diphenyl Ether

September 15, 1998

Author(s)

S. Wiegand, Robert F. Berg, Johanna M.H. Levelt-Sengers

Binding and Electron Transfer Between Putidaredoxin and Cytochrome P450cam (CYP101). Theory and Experiments

September 9, 1998

Author(s)

A. E. Roitberg, Marcia J. Holden, M P. Mayhew, I V. Kurnikov, D N. Beratan, V L. Vilker

A necessary step in understanding biological function in multiple metalloprotein redox systems is the description of protein-protein binding and electron transfer between two distant metal centers. In this communication, we present experimental and