Identification of nitrate ester explosives by liquid chromatography-electrospray ionization and atmospheric pressure chemical ionization mass spectrometry

    Authors

    X. M. Zhao;J. Yinon

    Comments

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    Abbreviated Journal Title

    J. Chromatogr. A

    Keywords

    nitrate esters; explosives; pentaerythritol tetranitrate; nitroglycerin; ethylene glycol dinitrate; Biochemical Research Methods; Chemistry, Analytical

    Abstract

    Liquid chromatography-mass spectrometry (LC-MS) with electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI), in the negative-ion mode, was investigated for the analyses of three widely used nitrate ester explosives, pentaerythritol tetranitrate, nitroglycerin and ethylene glycol dinitrate, as well as six additional nitrate esters, using post-column additives. In ESI, ammonium nitrate, sodium nitrite, propionic acid and ammonium chloride promoted formation of characteristic adduct ions of the respective nitrate esters. In APCI, chlorinated agents, dichloromethane, chloroform, carbon tetrachloride and ammonium chloride, were employed, forming chloride attachment adduct ions. Three forensic samples, Booster DYNO, Semtex and Smokeless Powder, were analyzed to demonstrate the validity of the developed LC-MS methods. (C) 2002 Elsevier Science B.V. All rights reserved.

    Journal Title

    Journal of Chromatography A

    Volume

    977

    Issue/Number

    1

    Publication Date

    1-1-2002

    Document Type

    Article

    Language

    English

    First Page

    59

    Last Page

    68

    WOS Identifier

    WOS:000179186100006

    ISSN

    0021-9673

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