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

被引：14
|
作者：
L'Hermite, D. [1 ]
Vors, E. [1 ]
Vercouter, T. [1 ]
Moutiers, G. [1 ]
机构：
[1] CEA, DEN, DPC, SEARS, F-91191 Gif Sur Yvette, France
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2016年 / 23卷 / 09期
关键词：
LIBS; Portable; Laser; CWA; Chemicals; Detection; Contamination; Surface; INDUCED BREAKDOWN SPECTROSCOPY; PHASE;
D O I：
10.1007/s11356-016-6305-1
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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 mu g/cm(2). The simultaneous detection of two markers may lead to a decrease of the number of false positive.
引用
收藏
页码：8219 / 8226
页数：8
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