The National Institute of Standards and Technology (NIST), in
support of the National Oceanic and Atmospheric Administration s
Marine Mammal Health and Stranding Response Program (NOAA/MMHSRP)
conducts annual interlaboratory comparison exercises for the
determination of chlorinated pesticides, polychlorinated biphenyl
congeners, and trace elements in marine mammal tissues. These
exercises provide one mechanism for laboratories to evaluate their
measurement quality and comparability for these constituents in
marine mammal tissues. In the 2003 exercise, 24 laboratories
participated in determining the concentrations of selected
polychlorinated biphenyl congeners (PCBs) and organochlorine
pesticides in a homogenized blubber control material Marine Mammal
Quality Assurance Exercise Homogenate VI (Homogenate VI) and
Standard Reference Material (SRM) 1945 Organics in Whale Blubber.
This report includes the results reported by the participating
laboratories, combined consensus data results, and summary
statistics for each analyte in the samples. The numerical indices
used to assess laboratory performance are also discussed.
General
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