Profiling the spatial concentration of allethrin and piperonyl butoxide using passive sorptive sampling and thermal desorption capillary GC–MS

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• 作者：Koen Desmet ; Nathalie De Coensel ; Tadeusz Gó ; recki ; Pat S ; ra
• 关键词：Sorptive sampling ; Polydimethylsiloxane ; Allethrin ; Piperonyl butoxide ; Thermal desorption ; GC– ; MS
• 刊名：Chemosphere
• 出版年：2008
• 出版时间：May 2008
• 年：2008
• 卷：71
• 期：11
• 页码：2193-2198
• 全文大小：203 K

文摘

Spatial concentration distribution of a chemical in an indoor environment is an important factor in the evaluation of chemical nuisances. However, straightforward techniques for the determination of this distribution are not very common and usually limited in their application. Sorptive sampling using polydimethylsiloxane-coated stir bars and the combination of active and diffusive sampling were shown to allow uncomplicated spatial concentration profiling of multiple compounds in an indoor environment. The validity of the approach was demonstrated in the analysis of the spatial concentration distribution of a pyrethroid insecticide in a common bedroom. The relative concentrations of allethrin and piperonyl butoxide were profiled throughout the room upon the application of an insecticide vaporizer.