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Quantitative determination of toxic mono- and non-ortho polychlorinated biphenyls in cod liver oil after selective liquid chromatographic separation |
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| Authors: | C Natzeck W Vetter B Luckas G Moskopp J Buijten |
| Institution: | 1. Institut für Ern?hrung und Umwelt, Universit?t Jena, Dornburger Str. 25, 07743, Jena, Germany 2. Institut für Chemie, Universit?t Hohenheim, Garbenstr. 30, 70599, Stuttgart, Germany 3. Supelco Deutschland GmbH, Grünwalder Weg 30, 82041, Deisenhofen, Germany 4. Chrompack International BV, P.O. Box 8033, 4330 EA, Middelburg, The Netherlands |
| Abstract: | Summary By application of chromatographic column filled with Supelclean ENVI-Carb/Celite and elution with three solvents of different polarity three PCB fractions were obtained. Fraction A contained poly-ortho PCBs, Fraction B mono-ortho PCBs, and Fraction C non-ortho PCBs. The Supelclean ENVI-Carb/Celite column was used in combination with a sample preparation procedure for pre-cleaning of acid-stable chlorinated hydrocarbons such as DDT and its metabolites, HCH isomers, and regulation-relevant PCB congeners. The method was optimized using standard solutions of 55 PCB congeners, 8 chlorinated pesticides and contaminated cod liver oil samples. The influence of traces of remaining matrix on the elution profile of the organochlorine compounds on Supelclean ENVI-Carb/Celite was observed. Quantitation was carried out by GC-ECD with fused silica capillary columns of different polarity. |
| Keywords: | Gas chromatography Column liquid chromatography Polychlorinated biphenyls Cod liver oil |
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