Comparison of methods for the gas-chromatographic determination of PCB congeners and chlorinated pesticides in marine reference materials |
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| Authors: | Michele M Schantz Reenie M Parris Joachim Kurz Karlheinz Ballschmiter and Stephen A Wise |
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| Institution: | (1) Chemical Science and Technology Laboratory, National Institute of Standards and Technology, 20899 Gaithersburg, Maryland, USA;(2) Department of Analytical and Environmental Chemistry, University of Ulm, W-7900 Ulm, Germany |
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| Abstract: | Summary Three gas-chromatographic (GC) columns with different selectivity (DB-5, DB-1701, and C-18) and two different GC detectors (electron-capture and mass-spectrometric) were used to analyze three Standard Reference Materials (SRMs), which are available from the National Institute of Standards and Technology (NIST), and two Certified Reference Materials (CRMs), which are available from the Community Bureau of Reference (BCR), for polychlorinated biphenyl (PCB) congeners and chlorinated pesticides. The materials analyzed were: SRM 1588, Organics in Cod Liver Oil; SRM 1941, Organics in Marine Sediment; SRM 1974, Organics in Mussel Tissue (Mytilus edulis); CRM 349, Chlorobiphenyls in Cod Liver Oil; and CRM 350, Chlorobiphenyls in Mackerel Oil. Results from these different methods are compared, and concentrations for additional PCB congeners and chlorinated pesticides in these reference materials, which have not been measured previously, are reported.Dedicated to Professor Dr. Wilhelm Fresenius on the occasion of his 80th birthday |
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