NDLI: Selected ion flow tube mass spectrometry analyses of laser decomposition products of a range of explosives and ballistic propellants

Content Provider	Royal Society of Chemistry (RSC)
Author	Sovová, Kristýna Španěl, Patrik Kubišta, Jiří Kyncl, Martin Skřehot, Petr Civiš, Martin Dryahina, Kseniya Civiš, Svatopluk
Copyright Year	2016
Abstract	The rationale of this study was to quantitatively characterise differences and similarities in the gaseous and volatile components of the decomposition products of 38 types of commercially produced explosives and propellants. A combination of laser-induced breakdown (LIB) and selected ion flow tube mass spectrometry (SIFT-MS) methods was used. The surface of the bulk samples was irradiated by a sequence of 10 laser pulses, 150 mJ each, in an argon atmosphere to simulate the explosion or combustion on a microscopic laboratory scale. The gas from the reaction zone was analysed in real time by SIFT-MS. The concentrations of the decomposition products (NH3, HCN, HCHO, NO, NO2, HONO, HNO3, C2H5OH, CH3CN, DMNB, C2H6CO, C2H2 and nitroglycerine) were determined and statistically processed using multivariate principal component analysis (PCA). The results revealed that there are similarities in the quantitative compositions of the decomposition products for similar explosives and similar propellants. PCA visualisation highlights that characteristic combinations of compounds correspond to the decomposition of nitrocellulose and nitrocellulose-based propellants (including trade mark Lovex), and different combinations correspond to various plastic explosives (trade mark Semtex). The conclusion of this work is that the present methodology can be used for safe and non-destructive studies of characteristic explosion products without the need for the initiation of hazardous quantities of explosives in the form of test charges.
Starting Page	1145
Ending Page	1150
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	8
Issue Number	5
Journal	Analytical Methods
DOI	10.1039/c5ay03039k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Lovex Semtex Ion DMDNB Nitric acid PCA Nitrocellulose Ammonia HCN Nitroglycerin Laser Acetonitrile Argon Mass spectrometry Principal component analysis
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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