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Determination of persistent organohalogenated pollutants in human hair reference material (BCR 397): an
Udai Gill1, Adrian Covaci, John Jake Ryan
1Product Safety Laboratory, Health Canada, Ottawa, Ontario K1A0L2, Canada.
Abstract:
A human powdered hair material (BCR 397) was tested for its content in persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and polybrominated diphenyl ethers (PBDEs). Using different methods, three laboratories (two from Canada and one from Belgium) analysed a powdered hair sample to evaluate some methodologies and to obtain consensus values for selected POPs. Measured values for all PCB congeners and p,p'-DDE were within a relative standard deviation (RSD) of 15%. These first results contribute to the accuracy and precision for POPs quantification in hair and render test results more comparable among different laboratories.
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