Desorption Electrospray Ionization of Explosives on Surfaces:  Sensitivity and Selectivity Enhancement by Reactive Desorption Electrospray Ionization

Desorption electrospray ionization (DESI), an ambient mass spectrometry technique, is used for trace detection of the explosives trinitrohexahydro-1,3,5-triazine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), 2,4,6-trinitrotoluene (TNT), Pentaerythritol tetranitrate (PETN), and their...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2005-11, Vol.77 (21), p.6755-6764
Main Authors: Cotte-Rodríguez, Ismael, Takáts, Zoltán, Talaty, Nari, Chen, Huanwen, Cooks, R. Graham
Format: Article
Language:English
Subjects:
Analytical chemistry
Explosives
Ions
Mass spectrometry
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Summary:Desorption electrospray ionization (DESI), an ambient mass spectrometry technique, is used for trace detection of the explosives trinitrohexahydro-1,3,5-triazine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), 2,4,6-trinitrotoluene (TNT), Pentaerythritol tetranitrate (PETN), and their plastic compositions (Composition C-4, Semtex-H, Detasheet) directly from a wide variety of surfaces (metal, plastic, paper, polymer) without sample preparation or pretreatment. Analysis of the explosives is performed under ambient conditions from virtually any surface in very short times (
ISSN:0003-2700
1520-6882
DOI:10.1021/ac050995+