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Proceedings Paper

Analysis of nonstandard and home-made explosives and post-blast residues in forensic practice
Author(s): Marek Kotrlý; Ivana Turková
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Paper Abstract

Nonstandard and home-made explosives may constitute a considerable threat and as well as a potential material for terrorist activities. Mobile analytical devices, particularly Raman, or also FTIR spectrometers are used for the initial detection. Various sorts of phlegmatizers (moderants) to decrease sensitivity of explosives were tested, some kinds of low viscosity lubricants yielded very good results. If the character of the substance allows it, phlegmatized samples are taken in the amount of approx.0.3g for a laboratory analysis. Various separation methods and methods of concentrations of samples from post-blast scenes were tested. A wide range of methods is used for the laboratory analysis. XRD techniques capable of a direct phase identification of the crystalline substance, namely in mixtures, have highly proved themselves in practice for inorganic and organic phases. SEM-EDS/WDS methods are standardly employed for the inorganic phase. In analysing post-blast residues, there are very important techniques allowing analysis at the level of separate particles, not the overall composition in a mixed sample.

Paper Details

Date Published: 10 June 2014
PDF: 10 pages
Proc. SPIE 9073, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XV, 90730U (10 June 2014); doi: 10.1117/12.2050121
Show Author Affiliations
Marek Kotrlý, Institute of Criminalistics Prague (Czech Republic)
Charles Univ. in Prague (Czech Republic)
Ivana Turková, Institute of Criminalistics Prague (Czech Republic)

Published in SPIE Proceedings Vol. 9073:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XV
Augustus Way Fountain III, Editor(s)

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