Langmuirian behaviour of smelly volatile organic compounds on air sampling with solid adsorbents

Abstract : A study of the sampling conditions of methylamine, trimethylamine, methanethiol, acetaldehyde, ethanethiol, dimethyl sulphide and dimethyl disulphide adsorbed on Carboxen-569 and HayeSep Q showed that the chromatographic behaviour of these volatile organic compounds (VOC) in these packings can be modelled with a Langmuir isotherm. The equations derived from this model allow the relationship between breakthrough volumes and atmospheric phase concentration of the adsorbates to be described. They also predict, for each adsorbent-adsorbate system, the breakthrough volumes at infinite dilution and the VOC concentration thresholds requiring the application of Langmuir isotherms to avoid important quantitative errors
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Pao Comes, Norbert Gonzalez-Flesca, Françoise Bader, Joan O. Grimalt. Langmuirian behaviour of smelly volatile organic compounds on air sampling with solid adsorbents. Journal of Chromatography A, Elsevier, 1996, 723 (2), pp.293-299. ⟨10.1016/0021-9673(95)00470-X⟩. ⟨ineris-00962641⟩

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