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Characterization of three major toxaphene congeners in arctic ringed seal by electron ionization and electron capture negative ion mass spectrometry |
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| Authors: | M D Loewent G A Stern J B Westmore D C G Muir H Parlar |
| Institution: | a Freshwater Institute, Department of Fisheries and Oceans, 501 University Cres., Winnipeg, Manitoba, Canada, R3T 2N6 b Deparmment of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada, R3T 2N2 c Environment Canada, National Water Research Institute, 867 Lakeshore Rd., P.O. Box 5050, Burlington, Ontario, Canada, L7R 4A6 d Department of Chemical Analysis, Technical University of Munich, 85350, Freising Weihenstephan, Germany |
| Abstract: | Three environmentally significant chlorinated bomane (CHB) congeners were extracted from Arviat ringed seal blubber and identified by using gas chromatography/mass spectrometry (HRGC/HRECNIMS (CH4), low resolution EIMS, and linked field scanning). They are referred to as TS2 (Parlar#39, B8-531) 2-exo,3-endo,5-exo,6,6,8b,9c,10c (or 10a)-octachlorobonane], TS3 (Parlar#40, B8-1414) 2-endo,3-exo,5-endo,6-exo,8c,9b,10a,10c (or 10b)-octachlorobornane] and TS4 (Parlar#42, Toxicant A, B8-806/809) 2-exo,3-endo,6,6,8b,8c,9c,10c (or 10a)-octachlorobonane/2-exo,3-endo,6,6,8b,9b,9c,10a (or 10b)-octachlorobonane]. This is the first time Toxicant A, known to be the most toxic CHB congener in technical toxaphene, has been found in any significant concentration in a marine mammal. |
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