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Studies on the Use of Commercial Capillary Gas Chromatographic Columns as Diffusion Denuders
Authors:Marta Dudek  Lidia Wolska  Michae&#x; Pilarczyk  Bogdan Zygmunt  Jacek Namie&#x;nik
Abstract:The possibility of using a piece of gas chromatographic capillary column as a tubular denuder for isolation and enrichment of organic pollutants present in air was studied. The partition coefficients (Kfs) of typical organic pollutants (benzene, chlorobenzene, toluene) between the gaseous phase and the denuder sorption layer were determined and effects of analyte concentration in the gaseous phase and gas flow rate on partitioning were studied. The partition coefficients were found to be constant in the studied range of concentration and gaseous mixture flow rate. A piece of a capillary column coated with polydimethylosiloxane can be used as a tubular denuder.
Keywords:Denuders  isolation and enrichment  analysis  volatile organic compounds  partition coefficients Kfs
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