Description and Results of the 2000 NIST/NOAA Interlaboratory Comparison Exercise Program for Organic Contaminants and Trace Elements in Marine Mammal Tissues

摘要

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. Results of the 2000 NIST/NOAA/MMHSRP Interlaboratory Comparison Exercise Program for Organic Contaminants and Trace Elements in marine Mammal Tissues are presented in two parts in this report, after a brief historical introduction of the program. Part 1 focuses on the development and analytical results of the organic contaminant component of this exercise, while Part 2 describes the features and analytical results for the trace elements and component. For the organic contaminant exercise, 13 laboratories determined the concentrations of selected polychlorinated biphenyl congeners (PCBs) and organochlorine pesticides in a homogenized blubber control materials 'Marine Mammal Quality Assurance Exercise Control Material IV' (Control Material IV) and Standard Reference Material (SRM) 1945 Organics in Whale Blubber.