Abstract
Enantioselective analysis of the chiral polychlorinated biphenyls (PCBs) 95, 132 and 149 in river sediment samples was carried out by multidimensional gas chromatography with an achiral-chiral column combination and electron-capture detection. The investigations revealed the PCB congeners analysed to be present racemic within experimental error. A micro simultaneous steam distillation-solvent extraction device was used as extraction method. This technique proved to be a versatile tool for the extraction of organochlorine compounds from several matrices and was used for the extraction of PCBs from sediment samples. The removal of interfering elementary sulfur was carried out by the treatment with copper powder during the extraction.
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