NEWS
New Instrumentation Panel Members Anna Brajter-Toth, Jack Henion, and Dallas Rabenstein have been appointed t o three-year t e r m s on ANALYTICAL C H E M I S T R Y ' S Instrumentation Advisory Panel. T h e y re place departing members D. Bruce Chase, E. I. du P o n t de Nemours & Company; L. J . Cline-Love, Seton Hall Univer sity; and R. Mark Wightman, University of N o r t h Carolina, Chapel Hill. Six other analytical chemists continue to serve on the panel: Daniel Armstrong, University of MissouriRolla; T h o m a s Chester, Procter & Gamble Company; R. Graham Cooks, P u r d u e University; Sanford Markey, Na tional Institutes of Health; Brenda Shaw, University of Connecticut; and Gary Small, University of Iowa. Instrumentation Advisory Panel members propose ap propriate topics a n d authors for I N S T R U M E N T A T I O N and other A-page features. T h e y also contribute to a dialogue on t h e overall aims and scope for INSTRUMENTATION arti cles, which introduce and promote interest in various chemical measurement systems (including instrument de sign and application). These features are written for t h e nonspecialist and are not comprehensive reviews. In addi tion to suggestions made primarily by t h e panel a n d t h e Editorial Advisory B o a r d , A N A L Y T I C A L C H E M I S T R Y con
siders unsolicited articles and suggestions for topics by readers. Brief biographical sketches of t h e new members follow. Anna Brajter-Toth, associate profes sor of chemistry a t t h e University of Florida, received an M.S. degree in 1974 from t h e University of Warsaw, Poland, and a Ph.D. from Southern Il linois University in 1979. H e r research interests include t h e development of instrumental methods for studying biologically significant redox reactions and t h e development of new electrode surfaces. Currently her work focuses on t h e development of on line electrochemistry/mass spectrometry t o study redox re actions of drugs a n d t h e investigation of t h e role of elec trode surface microstructure, surface chemistry, and solu tion microstructure in electrochemical reactions. J a c k Henion received a B.A. degree from Alfred University (1965), a n M.S. degree from t h e Rochester Insti tute of Technology (1967), a n d a Ph.D. from t h e State University of New York a t Albany (1972). Following | postdoctoral research on ion cyclotron resonance M S a t t h e University of North Carolina, Chapel Hill, he joined the chemistry d e p a r t m e n t a t Cornell University (1973), serving as director of t h e N I H Biotech nology Resources High-Resolution Mass Spectrometry Fa cility and carrying out experiments in L C / M S . In 1976 Henion joined t h e Equine Drug Testing and Research Pro gram of t h e New York State College of Veterinary Medi cine at Cornell, where he currently serves as associate pro
fessor of toxicology. Henion's research interests include both fundamental work with MS and real-world analytical problem solving using on-line LC/MS, SPC/MS, CE/MS, IC/MS, and MS/ MS. He pioneered the implementation of atmospheric pressure ionization for coupling these systems and has demonstrated the use of these methods for biomedical and industrial applications. Dallas Rabenstein is professor and chairman of the Department of Chem istry at the University of California, Riverside. His research interests in clude the development of NMR tech niques and their application to the characterization of peptides, proteins, biological fluids, and intact cells. Most recently Rabenstein has been involved with the characterization of the thioldisulfide redox chemistry of peptide hormones, character ization of the conformation of neurohypophyseal peptide hormones in solution, and methods for eliminating the wa ter resonance from ID and 2D Ή NMR spectra of aqueous solutions. Rabenstein received a B.S. degree in 1964 from the Uni versity of Washington and a Ph.D. in 1968 from the Uni versity of Wisconsin, Madison. He held several positions at the University of Wisconsin, Chevron Research Co., and the University of Alberta before joining the faculty at the University of California in 1985.
Go with the Flow Researchers from Los Alamos National Laboratory report field tests of a nonradioactive isotope tracer technique t o follow t h e flow of liquids through underground geologic formations. T h e analytical method promises to be useful for recovering oil, cleaning u p underground environmental contamination, a n d locating geothermal energy sources. T h e tracers could also detect chemical and biological reac tions t h a t occur in t h e subsurface flow path. Nine different tracers were used in t h e field tests, includ ing benzoic acid and t h e amino acids glycine and alanine. T h e tracers were injected into one or more wells, then sam pled a t a distant well or natural outflow. Deuterium or carbon-13 incorporated into t h e tracer molecules allows analysis by G C / M S a t concentrations of only a few p p b . T h e tracer field tests were conducted in Yellowstone Na tional P a r k and revealed t h a t a geothermal area north of the park is connected t o t h e M a m m o t h Terraces system t h a t feeds M a m m o t h H o t Springs. T h e study expanded by several kilometers t h e area with direct connections to t h e M a m m o t h Terraces.
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ANALYTICAL CHEMISTRY, VOL. 63, NO. 2, JANUARY 15, 1991 · 55 A
