Phase ratio variation approach for the study of partitioning behavior of volatile organic compounds in polymer sample bags: Nalophan case study

Environmental Science and Pollution Research International
Jim Van Durme, Bas Werbrouck

Abstract

Sorption of volatile organic compounds on the inner surface of polymer sampling bags leads to important underestimations of the real headspace concentration. Introducing a wide range of volatiles in a two-phase system containing Nalophan revealed that recoveries decreased down to 57 % in a period of 22 h. In this work, a phase ratio variation approach is investigated to quantify the degree of scalping, and thus enabling to compensate for sorption phenomena. This method requires limited measurements, without the need for time-consuming calibrations. By spiking identical amounts of volatiles in three two-phase systems, each having unique polymer volume/mass ratios β (β 1 = 0, β 2 = 80.9, β 3 = 161.9), individual partitioning coefficients could be experimentally determined for a wide range of compounds. Additionally, a correlation was found between these partitioning coefficients and the liquid molar volume for a number of aliphatic, aromatic, and oxygenated compounds.

References

Mar 1, 1996·American Industrial Hygiene Association Journal·W A Groves, E T Zellers
Jul 8, 2000·AIHAJ : a Journal for the Science of Occupational and Environmental Health and Safety·L J McGarvey, C V Shorten
Feb 6, 2003·Journal of the Air & Waste Management Association·A Ph van Harreveld
Dec 26, 2008·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Paweł MochalskiAnton Amann
Jun 30, 2011·Journal of Environmental Quality·Michael J HansenKristoffer E N Jonassen

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Citations

Aug 12, 2009·Waste Management·Erasmo CadenaAdriana Artola
Apr 11, 2018·Journal of Environmental Quality·Pernille Lund KasperAnders Feilberg
Jul 26, 2017·TheScientificWorldJournal·Lidia EusebioSelena Sironi

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