DEVELOPMENT OF A SPME-GC-MS BASED METHOD FOR ANALYSIS OF ORGANOCHLORINATED SMOKE AGENTS IN SOIL AND ITS APPLICATION ABOUT THE CHARACTERIZATION OF A FORMER MILITARY SITE

Smoke agents contained chlorinated compounds with a high environmental impact such carbon tetrachloride and hexachloroethane used for a long time by North Atlantic Treaty Organization (NATO). The aim of this paper is to present an analytical method for the determination of these organochlorinated molecules based on Solid Phase Microextraction (SPME) and Gas Chromatography Mass Spectrometry (GC-MS) optimizing the temperature and the time of fiber exposure. This method have been compared with the reference method EPA 5021 for headspace GC-MS, and the SPME method proves improved performance especially in term of sensibility respect to the reference one. The SPME method have been applied to the real case of the characterization of a former military plant.