Award Abstract #0321288
MRI: Development of ps-REMPI, a Facility for Trace Species Analysis

NSF Org:	CHE Division of Chemistry
Initial Amendment Date:	August 1, 2003
Latest Amendment Date:	August 1, 2003
Award Number:	0321288
Award Instrument:	Standard Grant
Program Manager:	Carlos A. Murillo CHE Division of Chemistry MPS Directorate for Mathematical & Physical Sciences
Start Date:	October 1, 2003
Expires:	September 30, 2007 (Estimated)
Awarded Amount to Date:	$807836
Investigator(s):	Harald Oser harald.oser@sri.com (Principal Investigator) David Huestis (Co-Principal Investigator)
Sponsor:	SRI International 333 RAVENSWOOD AVE MENLO PARK, CA 94025 650/859-3571
NSF Program(s):	MAJOR RESEARCH INSTRUMENTATION
Field Application(s):
Program Reference Code(s):	OTHR, AMPP, 9162, 9141, 1750, 0000
Program Element Code(s):	1189

ABSTRACT

With support from the Major Research Instrumentation (MRI) Program, Harald Oser and David L. Huestis in the Molecular Physics Laboratory at SRI International will develop a Picosecond Resonance Enhanced Multiphoton Ionization (REMPI) instrument for Trace Species Analysis. The new instrument will consist of a laser ionization mass spectrometer using a tunable, variable pulse length, picosecond laser system. The targeted analytes include nitrocompounds; organic molecules containing halogen, metal, and heavy atoms; aromatic ketones; larger biomolecules; and chemical warfare agents. Because of their short-lived excited states, these molecules cannot be detected using conventional nanosecond pulse-duration laser ionization sources.

This instrument will provide an exception opportunity for training researchers in the use of laser ionization mass spectrometry and laser ionization spectroscopy. The availability of an instrument capable of detecting short-lived chemical warfare agents and explosives will also have a large impact on homeland security.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Bethany V. Pond, Christopher Mullen, Indara Suarez, Jude Kessler, Katy Briggs, Steven E. Young, Michael J. Coggiola, David R. Crosley, and Harald Oser.  "Detection of Explosives and Explosive Related Compounds (ERCs) by Laser Ionization Time of Flight Mass Spectrometry,"  Applied Physics B-Lasers and Optics,  v.86,  2007,  p. 735.

Christopher Mullen, Amos Irwin, Bethany V. Pond, David L. Huestis, Michael J. Coggiola, and Harald Oser.  "Detection of Explosives and Explosives-Related Compounds by Single Photon Laser Ionization Time-of-Flight Mass Spectrometry,"  Anal. Chem.,  v.78,  2006,  p. 3807.

Christopher Mullen, David Huestis, Michael Coggiola, Harald Oser.  "Laser photoionization of triacetone triperoxide (TATP) by femtosecond and nanosecond laser pulses,"  International Journal of Mass Spectrometry,  v.252,  2006,  p. 69.


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