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Abstract
The National Institute of Standards and Technology (NIST) has recently issued several new environmental matrix SRMs, including air and diesel particulate matter, marine sediment, and mussel tissue with certified and reference concentrations for polycyclic aromatic hydrocarbons (PAHs). New marine-related SRMs include: SRM 1944 New York/New Jersey Waterway Sediment, SRM 2974 Organics in Freeze-dried Mussel Tissue, SRM 2977 Mussel Tissue (Organic Contaminants and Trace Elements), and SRM 2978 Mussel Tissue (Organic Contaminants — Raritan Bay, New Jersey). SRM 2975 Diesel Particulate Matter (Industrial Forklift) and SRM 1975 Diesel Particulate Extract (a dichloromethane extract of the particulate matter used for SRM 2975) represent two new diesel particulate-related materials. In addition two existing materials, SRM 1649a Urban Dust and SRM 1650a Diesel Particulate Matter were recently reissued with certified and reference values for over 40 PAHs.
