A comparative study of selected sorbents for sampling of aromatic VOCs from indoor air

Idris, Salah Ali Mahgoub and Robertson, Claire Joanne and M.A., Morris and Gibson, Lorraine (2010) A comparative study of selected sorbents for sampling of aromatic VOCs from indoor air. Analytical Methods, 2 (11). pp. 1803-1809. ISSN 1759-9660

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Abstract

Indoor air canbecome pollutedwith VOCs, and understanding the factors which affect adsorption of VOCs from indoor air is important for: (i) the accurate measurement of VOCs, and (ii) to apply mitigation strategies when high analyte concentrations are measured. In this study four VOCs (toluene, ethylbenzene, cumene and dichlorobenzene) were generated as a constant and controlled polluted air stream of VOCs from a dynamic atmospheric chamber. The effects of relative humidity, and sampling flow rate, on adsorption onto Tenax TA and the relatively new silica adsorbents SBA-15 or MCM-41 were studied.

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