STP1282

    The Multiport Sampler: An Innovative Sampling Technology

    Published: Jan 1996


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    Abstract

    The Multiport Sampler (MPS) was developed to overcome current cone penetrometer sampling limitations. The MPS was specifically designed to obtain multiple fluid (gas, vapor, and/or liquid) samples during a single penetration while minimizing sample cross-contamination from each sampling cycle. The MPS consists of a series of vertically stacked sampling modules that are independently operated from the surface. As the cone penetrometer is advanced to the desired sampling depth, a module is selectively opened to allow soil pore fluid to be drawn through a sidewall port. Fluid samples may be either analyzed during the penetration event using equipment on the surface or collected inside the penetrometer for subsequent analysis. The MPS has been used only to sample vapors from soils contaminated with chlorinated organic solvents to determine the relative concentration of the contaminants in different soil strata.

    Keywords:

    penetrometer, electric cone, sampler, contaminant, ion trap mass spectrometer, contaminant trap


    Author Information:

    Leavell, DA
    Research Civil Engineer, Geotechnical Laboratory, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS

    Malone, PG
    Geophysicist, Structures Laboratory, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS

    Lee, LT
    Research Civil Engineer, Geotechnical Laboratory, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS


    Paper ID: STP16574S

    Committee/Subcommittee: D34.01

    DOI: 10.1520/STP16574S


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