Open adsorption tube enables measurement of gases at parts-per-trillion-by-volume concentrations. Traps trace materials in flowing gas. Variety of configurations possible; tube consists of single long coil instead of several short ones, and tube is made of materials other than stainless steel. Partial immersion of coil in cryogen results in 100 percent trapping rather than typical 85 percent for total immersion.


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    Titel :

    Concentrating Trace Gases at Low Pressures


    Beteiligte:
    Vedder, James F. (Autor:in) / O'Hara, Dean (Autor:in) / Vo, Tuyen (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.10.1987



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Transport of Trace Gases

    Schoeberl, Mark R. | NTRS | 2005



    Density measurements of trace gases

    Dimeff, J. | NTRS | 1977


    CONCENTRATING APPARATUS

    PARK KYU WON / PARK SEOG WON / KIM SEONG TAE et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Effective thermal conductivity of gases at low pressures

    Costello, Frederick A. | TIBKAT | 1961