January 2009 Meeting Announcement, Delaware Valley Mass Spectrometry Discussion Group
- Topic: "Aerosol Mass Spectrometry: How it works and why atmospheric chemists use it
- Speaker: Murray Johnston (University of Delaware)
- Date: Monday, January 12, 2009. 6:30 PM
- Time: Social Hour: 6:30 PM.
Talk: 7:30 PM.
Please RSVP to John Masucci JMASUCCI@PRDUS.JNJ.COM by Thursday November 6th.
- Place: Department of Chemistry, Villanova University (Room 154, Mendel Hall)
For over a decade, mass spectrometry has been used to determine the chemical composition of airborne particles in real-time, often with concurrent size selection or measurement. This presentation will provide an overview of the burgeoning field of aerosol mass spectrometry. The entire process will be covered from efficient particle sampling into the vacuum of a mass spectrometer, to the acquisition of "raw" chemical composition data through a variety of ionization methods, to the extraction of meaningful information about the air we breathe. Approximately equal emphasis will be given to instrumentation and applications, and overlap with my "stand-in" presentation last spring will be minimal.
Murray Johnston received a B.S. in Chemistry from Bucknell University in 1976 and a Ph.D. in Analytical Chemistry from the University of Wisconsin, Madison in 1980. After completing a postdoctoral fellowship at Northwestern University, he began his academic career in 1982 as Assistant/Associate Professor of Chemistry and Fellow of the Cooperative Institute for Research in Environmental Sciences at the University of Colorado, Boulder. In 1990, he moved to the University of Delaware where he is currently Professor of Chemistry. He received a Center for Advanced Study Fellowship in 1999, the Outstanding Scholar Award in the College of Arts and Sciences in 2001, and the American Chemical Society Delaware Section Award in 2002. His research includes applications of mass spectrometry to a wide range of materials from airborne particles, to biological macromolecules, to industrial polymers. This work has led to over 90 peer-reviewed publications and book chapters.
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