The chiral analysis of residues in cleaned-up blood, egg, viscera and tissue samples of laying hens, that were fed with toxaphene-spiked food over a certain period of time, was performed using a multidimensional high resolution gas chromatographic system equipped with an electron capture detector (MD-HRGC/ECD). For this special and time-consuming technique skilled personnel is necessary, but it can be successfully applied to elucidate the possible metabolisation of (+)- and (-)-antipodes of different toxaphene congeners. Numerous congeners of the 22 component standard mixture (named after Parlar) could be identified in organ tissues and eggs of the hens sampled during the feeding period with toxaphene-contaminated food as well as in the following depuration period. The most important result of this thesis is that only one antipode of some of the congeners, which have been analyzed by GC and MS methods, could be detected. Nearly all of the previous toxicological experiments have been carried out with toxaphene racemates and, therefore, often no clear correlation can be inferred considering the impact of the single antipodes. According to our results, the enantiomers of the congeners #44 and #62, which have been frequently found in high concentrations, should be primarily taken into consideration.
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The chiral analysis of residues in cleaned-up blood, egg, viscera and tissue samples of laying hens, that were fed with toxaphene-spiked food over a certain period of time, was performed using a multidimensional high resolution gas chromatographic system equipped with an electron capture detector (MD-HRGC/ECD). For this special and time-consuming technique skilled personnel is necessary, but it can be successfully applied to elucidate the possible metabolisation of (+)- and (-)-antipodes of diff...
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