HRGC-ECD AND HRGC-ECNI-SIM-HRMS QUANTIFICATION OF TOXAPHENE RESIDUES BY 6 ENVIRONMENTALLY RELEVANT CHLOROBORNANES AS STANDARD

The HRGC determination of toxaphene residues in environmental samples is often difficult because of different degradation rates and accumula tion behavior of individual toxaphene components. Therefore, isolated environmentally relevant chlorinated bornanes are used as standards. D uring the last years, single components as well as different combinati ons of them have been tested for their suitability for HRGC-HRMS-ECNI quantification. In this study, Parlar #26, Parlar #40, Parlar #41, Par lar #44, Parlar #50, and Parlar #62 have been used. The results show t he sum of these six components to be at least 80-85% of toxaphene in f ish oils. (C) 1998 Elsevier Science Ltd. All rights reserved.