Identification of explosives and explosive formulations using laser electrospray mass spectrometry

被引：48

作者：

Brady, John J. ^{[1
]}

Judge, Elizabeth J. ^{[1
]}

Levis, Robert J. ^{[1
]}

机构：

[1] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 2010年 / 24卷 / 11期

基金：

美国国家科学基金会;

关键词：

ION MOBILITY SPECTROMETRY; SOLID-PHASE MICROEXTRACTION; ATMOSPHERIC-PRESSURE; MULTILAYER BENZENE; GAS-CHROMATOGRAPHY; THERMAL-DESORPTION; TRACE DETECTION; IONIZATION; FEMTOSECOND; ABLATION;

D O I：

10.1002/rcm.4566

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

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.

引用

页码：1659 / 1664

页数：6

共 46 条

[1] Femtosecond near-infrared laser desorption of multilayer benzene on Pt{111}: spatial origin of hyperthermal desorption [J].