Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 386, Issue 4, Pages 1153-1190Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-006-0719-4
Keywords
reference materials; standard reference materials; hydrocarbons (halogenated vertical bar polycyclic); organic compounds/trace organic compounds; certified reference materials
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For the past 25 years the National Inst of Standards and Technology (NIST)has developed certified reference materials (CRMs), known as standard reference materials (SRMs), for determination of organic contaminants in environmental matrices. Assignment of certified concentrations has usually been based on combining results from two or more independent analytical methods. The first-generation environmental-matrix SRMs were issued with certified concentrations for a limited number (5 to 10) of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). Improvements in the analytical certification approach significantly expanded the number and classes of contaminants determined. Environmental-matrix SRMs currently available include air and diesel particulate matter, coal tar, marine and river sediment, mussel tissue, fish oil and tissue, and human serum, with concentrations typically assigned for 50 to 90 organic contaminants, for example PAHs, nitro-substituted PAHs, PCBs, chlorinated pesticides, and polybrominated diphenyl ethers (PBDEs).
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