Detection and monitoring of CWA and BWA using LIBS

Laser-induced breakdown spectroscopy (LIBS) is a laser-based optical technique particularly suited for in situ surface analysis. A portable LIBS instrument was tested to detect surface chemical contamination by chemical warfare agents (CWAs). Test of detection of surface contamination was carried out in a toxlab facility with four CWAs, sarin (GB), lewisite (L1), mustard gas (HD), and VX, which were deposited on different substrates, wood, concrete, military green paint, gloves, and ceramic. The CWAs were detected by means of the detection of atomic markers (As, P, F, Cl, and S). The LIBS instrument can give a direct response in terms of detection thanks to an integrated interface for non-expert users or so called end-users. We have evaluated the capability of automatic detection of the selected CWAs. The sensitivity of our portable LIBS instrument was confirmed for the detection of a CWA at surface concentrations above 15 μg/cm(2). The simultaneous detection of two markers may lead to a decrease of the number of false positive.

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Evaluation of the efficacy of a portable LIBS system for detection of CWA on surfaces

L’Hermite

Vors

Vercouter

et al. 2016

Environ Sci Pollut Res

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Spectroscopic investigation of substrates contaminated by chemical warfare agents

Landström

Örebrand

Svensson

et al. 2015

J. Anal. At. Spectrom.

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Detection and monitoring of CWA and BWA using LIBS

Cited by 2 publications

References 13 publications

Evaluation of the efficacy of a portable LIBS system for detection of CWA on surfaces

Evaluation of the efficacy of a portable LIBS system for detection of CWA on surfaces

Spectroscopic investigation of substrates contaminated by chemical warfare agents

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