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高温材料处理:国际期刊
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN 打印: 1093-3611
ISSN 在线: 1940-4360

高温材料处理:国际期刊

DOI: 10.1615/HighTempMatProc.v11.i1.110
pages 125-147

ADVANCES IN THE DETECTION OF CHEMICAL AND BIOLOGICAL AEROSOLIZED POLLUTANTS BY MEANS OF A FIELD-TRANSPORTABLE LASER-INDUCED BREAKDOWN SPECTROSCOPY-BASED DETECTOR

N. Leone
Section détection physique, Centre d'Etudes du Bouchet, Delegation Generate pour l'Armement, BP 3, 91710 Vert le Petit, France
G. Fath
Centre d'Etudes du Bouchet, Délégation Générale pour l'Armement, SDT/ESD/DIST, BP n°3, 91710 Vert le Petit, France
P. Adam
Section détection physique, Centre d’Etudes du Bouchet, Direction des Centres d'Expertise et d'Essais, Delegation Generate pour l’Armement, BP 3, 91710 Vert le Petit, France

ABSTRACT

Recent developments of Laser-Induced Breakdown Spectroscopy (LIBS) are devoted to the real-time and in situ detection of chemical (C) and biological (B) pollutants. The aim of the present work is to present and assess the abilities of an innovative field-transportable system based on LIBS to detect and ideally classify the different forms of C and B contaminations. In this paper, we focused on the detection of particulate matter. Multielemental model and Bacillus-based real bacterial aerosols are studied in terms of elemental sensitivity, statistical sampling strategy and classification purposes by means of the LIBS. The capabilities of the LIBS system to detect and discriminate a set of aerosols were assessed with satisfaction. Very rich atomic spectral information is contained in only one spectrum. Through statistical multivariate methods such as Principal Component Analysis, a distinction between the natural and surrounding environmental background and the "contamination" would be possible.