Abstract

VAN VUUREN, Estefan  and  NAUDE, Yvette. Air Sampling: A Mini-denuder Sampling Device for Direct Desorption in an Inlet of a Gas Chromatograph for the Analyses of Airborne Gaseous Phase Pollutants and Airborne Particulate Phase Pollutants. S.Afr.j.chem. (Online) [online]. 2019, vol.72, pp.55-58. ISSN 1996-840X.  https://doi.org/10.17159/0379-4350/2019/v72a8.

We introduce a compact mini-denuder air sampling device consisting of a regular gas chromatograph (GC) inlet liner for the simultaneous concentration of separate airborne gaseous and particulate phases in a single-step. Denuder materials are thermally desorbed in a regular inlet of a GC using routine equipment available in any chromatography laboratory. The simplicity of the technique makes it ideal for resource-poor laboratories.

Keywords : Air sampling; gas chromatography; denuder; polydimethylsiloxane (PDMS); thermal desorption.

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