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    STP1062

    Canister-Based Samplers for Volatile Organics

    Published: 01 January 1990


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    Abstract

    Canister-based samplers for volatile organics are a viable alternative to samplers based on solid sorbent collection. Simple, low-cost units are available that operate for sampling periods of from one minute to several hours without the need for electricity. If electronic flow controllers are used, constant sampling rates can be maintained over 24 hours. Sample integrity of compounds passing through the samplers, and storage stability have been tested. Problems with sample integrity due to contamination in sampler elements upstream of the canisters are common, but have been prevented by proper cleaning procedures. Storage stability over seven days at the 1.0 ppbv concentration level has been established. Reactions among co-collected compounds needs further study. The weatherized versions of these units are suitable for monitoring near hazardous waste landfills.

    Keywords:

    canisters, volatile organics, certification, air sampler, air quality


    Author Information:

    McClenny, WA
    research scientists, Atmospheric Research and Exposure Assessment Laboratory of the U. S. Environmental Protection Agency, Research Triangle Park, NC

    Pleil, JD
    research scientists, Atmospheric Research and Exposure Assessment Laboratory of the U. S. Environmental Protection Agency, Research Triangle Park, NC


    Committee/Subcommittee: D34.01

    DOI: 10.1520/STP18954S