Enantiomeric resolution of persistent compounds of technical toxaphene (CTTs) on t-butyldimethylsilylated β-cyclodextrin phases |
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Authors: | W Vetter U Klobes B Luckas G Hottinger |
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Institution: | 1. Institut für Ern?hrung und Umwelt, Friedrich-Schiller-Universit?t Jena, Dornburger Str. 25, 07743, Jena, Germany 2. BGB Analytik KG, Lettenstr. 97, 8134, Adliswil, Switzerland
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Abstract: | Summary Eight of the most important single compounds of technical toxaphene were separated on t-butyldimethylsilylated β-cyclodextrin
(β-BSCD) diluted in a medium polar phase using gas chromatography with electron capture detectors (GC-ECD). The enantiomeric
resolution of all compounds was obtained in one GC run. The β-BSCD phase also separated the enantiomers of oxychlordane, cis-
and trans-chlordane as well as α-HCH. Problems in the enantioselective determination of CTTs in biological samples are discussed.
Finally, the enantioselective determination of the two most recalcitrant CTTs in biological samples was achieved using electron
capture negative ionization mass spectrometry (GC-ECNI-MS) in the single ion monitoring (SIM) mode.
Presented at the 21st ISC held in Stutgart, Germany, 15th–20th September, 1996. |
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Keywords: | Gas chromatography Chiral stationary phases Modified cyclodextrin Compounds of technical toxaphene Enantiomeric ratios |
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