Adsorption/Thermal Desorption with Tenax‐GC for the Collection and Analysis of Polycyclic Aromatic Hydrocarbons and Chlorinated Compounds

Abstract

A system for the determination of polycyclic aromatic hydrocarbons(PAHs) and chlorinated compounds. in air by means of adsorption/thermal desorption(AID) with small bed volume (O.lg) Tenax cartridges, followed bycryogenic trap in a V-shaped stainless , steel tube with liquid nitrogen as an appropriate concentration method prior to capillary gas chromatography is described, Recoveries were determined .for the complete ATO method. Desorption recoveries near 100% were found for a variety of chlorinated compounds and polycyclic aromatic bydrocarbons.