Journal
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
Volume 24, Issue 11, Pages 1659-1664Publisher
WILEY
DOI: 10.1002/rcm.4566
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Funding
- National Science Foundation [CHE0518497]
- Army Research Office [W911NF0810020]
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Mass analysis is demonstrated for the detection of sub-microgram quantities of explosive samples on a metallic surface at atmospheric pressure using laser electrospray mass spectrometry (LEMS). A non-resonant femtosecond duration laser pulse vaporizes native samples for subsequent electrospray ionization and transfer into a time-of-flight mass spectrometer. LEMS was used to detect 2,3-dimethyl-2,3-dinitrobutane (DMNB), 1,3,5-trinitroperhydro-1,3,5-triazine (RDX), 3,4,8,9,12,13-hexaoxa-1,6-diazabicyclo[4.4.4]tetradecane (HMTD), and 3,3,6,6,9,9-hexamethyl-1,2,4,5,7,8-hexaoxacyclononane (TATP) deposited on a steel surface. LEMS was also used to directly analyze composite propellant materials containing an explosive to determine the molecular composition of the explosive pellets at atmospheric pressure. Copyright (C) 2010 John Wiley & Sons, Ltd.
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