February 1999 Meeting Announcement, Delaware Valley Mass Spectrometry Discussion Group
- Topic: "How might laser mass spectrometry be of use to me?"
- Speaker: Murray V. Johnston, Chemistry and Biochemistry Department, University of Delaware, Newark, DE 19716.
- Date: Monday, February 8, 1999. 7:00 PM
- Time: Social Hour: 7:00 PM.
Talk: 7:30 PM.
- Place: Merck, West Point, 37 Auditotium
- Abstract: Prior to the 1990s, the use of lasers in mass spectrometry was constrained
to rather esoteric experiments. Today lasers find widespread practical
use, for example through the technique matrix-assisted laser desorption
ionization (MALDI). This presentation will give an overview of several
ongoing projects in our group, most of which involve the combination of
lasers and mass spectrometry to solve problems of biological, industrial,
and environmental interest. Topics to be covered include: determination
of sequence and higher order structure of DNA by enzymatic digestion and
MALDI analysis, protein identification by enzymatic digestion and database
searching, microstructure determination of polyolefins by thermal and
chemical degradation with mass spectrometric characterization of the
products, and aerosol particle characterization.
- Bio: Murray V. Johnston received his B.S. in chemistry from Bucknell University in Lewisburg, PA and his Ph.D. in analytical chemistry from University of Wisconsin-Madison under John C. Wright. After completing a postdoctoral fellow at Northwestern University with Richard VanDuyne he joined the faculty in the Chemistry and Biochemistry Department and CIRES (Cooperative Institute for Research in Environmental Science) at the University of Colorado, Boulder. In 1990, he moved to the University of Delaware where he is a Professor of Chemistry and also serves as the director of graduate studies of the chemistry and biochemistry department. His research interests include mass spectrometry of synthetic polymers and biopolymers, atmospheric pollution chemistry, aerosol chemistry, single particle detection/analysis, photoionization, MALDI and ESI.
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