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Electrospray ionization tandem mass spectrometry collision-induced dissociation study of explosives in an ion trap mass spectrometer

✍ Scribed by Jehuda Yinon; Joseph E. McClellan; Richard A. Yost

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 225 KB
Volume: 11
Category: Article
ISSN: 0951-4198
DOI: 10.1002/(sici)1097-0231(199712)11:18<1961::aid-rcm99>3.0.co;2-k

No coin nor oath required. For personal study only.

✦ Synopsis

Electrospray ionization (ESI) tandem mass spectrometry collision-induced dissociation (CID) fragmentation

processes of a series of nitroaromatic, nitramine and nitrate ester explosives were studied in the negative-ion mode using daughter-ion, parent-ion and neutral loss scans. 2,4,6-Trinitrotoluene (TNT) was characterized by loss of OH, NO and NO 2 1,3,5-trinitro-1,3,5-triazacyclohexane (RDX) and 1,3,5,7-tetranitro-1,3,5,7-tetrazacyclooctane (HMX) were characterized by loss of CH 2 NNO 2 , NNO 2 , NO 2 and N 2 O. 2,4,6,N-Tetranitro-N-methylaniline (tetryl) and its hydrolysis product, N-methylpicramide, showed losses of NO 2 , HNO 2 and NNO 2 . Pentaerythritol tetranitrate (PETN), glycerol trinitrate (nitroglycerin) and ethylene glycol dinitrate (EGDN) were characterized by loss of CH 2 NO 2 , CH 2 NO, CHNO 2 , ONO 2 , NO 2 and NO. Similarities were found between ESI and negative chemical ionization mass spectra as well as between their CID fragmentation processes. Detection limits of TNT, tetryl, PETN, RDX, and HMX were found to be in the 5-10 pg range.

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