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Use of poly(ethylene terephtalate) film bag to sample and remove humidity from atmosphere containing volatile organic compounds

Abstract : Nalophan bags made from poly(ethylene terephtalate) film are often used to collect odorous gases. In this paper, the sample water removal method, based on humidity diffusion through the sample bag film, was applied using Nalophan bags and Tedlar bags to sample volatile organic compounds (VOCs) at low concentration (10 μg/m3). The removal of water with Nalophan bags enabled a reduction in relative humidity (RH) in a 10-L air sample from 80% to 20% in 2 h at 20 °C. The use of Nalophan bags for the removal of water did not involve significant VOC loss among the 11 compounds studied.
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Submitted on : Thursday, December 16, 2021 - 10:38:07 AM
Last modification on : Wednesday, January 19, 2022 - 2:38:02 PM

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Sandra Beghi, Jean-Michel Guillot. Use of poly(ethylene terephtalate) film bag to sample and remove humidity from atmosphere containing volatile organic compounds. Journal of Chromatography A, Elsevier, 2008, 1183 (1-2), pp.1-5. ⟨10.1016/j.chroma.2007.12.051⟩. ⟨hal-03482684⟩

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