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Sample water removal method in volatile organic compound analysis based on diffusion through poly(vinyl fluoride) film

, : Sample water removal method in volatile organic compound analysis based on diffusion through poly(vinyl fluoride) film. Journal of Chromatography. A 1127(1-2): 1-5

The humidity caught during air sampling or sample storage causes various problems during volatile organic compound (VOC) analysis and gives unreliable results. In this study, water vapour diffusion capacities through poly(vinyl fluoride) Tedlar, fluoroethylene propylene Teflon and Flex foil film were compared. A new approach to humidity removal has been tested for moderately polluted atmospheres. This approach consists in using the water vapour diffusion property of Tedlar film to remove humidity from bag samples containing a mixture of ten VOCs at 500 ppbv each in a 70% relative humidity atmosphere. The sampling bags were placed in a chamber flushed by a dry air stream at less than 5% relative humidity. After a few hours in the chamber, the samples in the Tedlar bags were dry (relative humidity < 5%) and did not show significant VOC loss. This sample water removal (SWR) method is especially interesting as a pretreatment before air sampling on water sensitive adsorbents. (c) 2006 Elsevier B.V. All rights reserved.


PMID: 16828784

DOI: 10.1016/j.chroma.2006.05.102

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Rebarber, A.; Roman, A.; Saltzman, D.; Mulholland, J.; Bender, S.; Koklanaris, N.; Roshan, D., 2003: The impact of cervical cerclage on labor morbidity. American Journal of Obstetrics & Gynecology 189(6 Supplement): S209, September

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Tsang C F.C.; Wilkinson G.R., 1980: Diazepam disposition in aged rabbit and rat. Pharmacologist 22(3): 230

Johnston D.; Wachtel H.; Ayala G.F., 1974: The functional architecture of the lateral plexus as revealed by nonlinear inhibitory coupling in the limulus eye. Federation Proceedings 33(3 PART 1): 434

Kiurtov, N., 1975: Immunological studies of blood cell parasites in sheep. IV. Immunofluorescent reaction in the diagnosis of babesiosis. Proceedings of the World Veterinary Congress: 0th (v 1) 655-656

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Paskevicius, J., 1983: Associations of the Silurian graptolites in various facies of the south-east Baltic region. Nauchnye Trudy Vysshikh Uchebnykh Zavedenii Litovskoi SSR Geologiya, 4: 23-40

Bedford, M., 2000: Removal of antibiotic growth promoters from poultry diets: implications and strategies to minimise subsequent problems. The paper briefly reviews information describing the benefits of antibiotic growth promoters and, highlights changes that feed manufacturers and poultry producers will be required to make as a result of the European Union's decision to remove...

Tomasi, V., 1976: Prostaglandin E1 as an intercellular regulator of cyclic AMP levels. Experimental Cell Biology 44(3-6): 260-277