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Title: Effects of acid-washing filter treatment on quantification of aerosol organic compounds
Authors: Yang, L. 
Lim, J.
Yu, L.E. 
Keywords: Filter pretreatment
Glass fiber filter
Organic aerosol
Recovery efficiency
Issue Date: Jun-2007
Citation: Yang, L., Lim, J., Yu, L.E. (2007-06). Effects of acid-washing filter treatment on quantification of aerosol organic compounds. Atmospheric Environment 41 (18) : 3729-3739. ScholarBank@NUS Repository.
Abstract: The tests of standard mixtures and four sets of atmospheric particulate samples showed that an acid-wash (AW) pretreatment of fluorocarbon-coated glass fiber filters prior to aerosol sampling enhanced the quantifiable organic compounds for more than 29% (or 66 ng m-3); in particular, 47-273 ng m-3 (21-366%) more water-soluble organic compounds (WSOCs) were measured. When the acid-pretreated filters were employed, up to nine more organic species were measured in the individual daily samples. Because the acid pretreatment reduced the metal contaminants in the glass fiber filters, using the AW filters for aerosol sampling allows higher extraction recoveries of organic compounds. Since the fingerprinting compounds were more accurately determined when the aerosol samples were collected on the AW filters, better assessment of emission sources and toxicity of air pollutants can be obtained. © 2007 Elsevier Ltd. All rights reserved.
Source Title: Atmospheric Environment
ISSN: 13522310
DOI: 10.1016/j.atmosenv.2007.01.034
Appears in Collections:Staff Publications

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