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Trace Analytical Methods for Semifluorinated n-Alkanes in Snow, Soil, and Air
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- Plassmann, Merle M. (author)
- Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)
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- Berger, Urs (author)
- Stockholms universitet,Institutionen för tillämpad miljövetenskap (ITM)
- (creator_code:org_t)
- 2010-05-06
- 2010
- English.
- In: Analytical Chemistry. - : American Chemical Society (ACS). - 0003-2700 .- 1520-6882. ; 82:11, s. 4551-4557
- Journal article (peer-reviewed)
Abstract
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- Semifluorinated n-alkanes (SFAs) are anthropogenic chemicals that are used in ski waxes and, thus, are released directly into the environment, but their subsequent fate and distribution are as yet unknown. Therefore, simple, selective, and sensitive methods were developed for analyzing trace amounts of SFAs in snow/water, soil, and air samples by gas chromatography coupled to electron capture negative ionization mass spectrometry (GC/ECNI-MS). Recoveries were generally in the range of 70-120%, depending on the compound and matrix. The analytical sensitivity was higher for SFAs with longer fluorinated chains, and the instrumental limits of detection ranged from 0.3 to 260 pg injected, providing method detection limits of 0.54-311 ng L-1, 0.004-9.86 ng g(-1), and 0.4-531 ng m(-3) for snow (analyzed as its meltwater), soil, and air samples, respectively. Using the developed procedures, SFAs were found in snow (meltwater) and soil samples from a small cross-country ski area in Sweden at concentrations up to 1.3 mu g L-1 and 47 pg g(-1), respectively.
Keyword
- NATURAL SCIENCES
- NATURVETENSKAP
- Applied Environmental Science
- tillämpad miljövetenskap
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- ref (subject category)
- art (subject category)
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