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Contamination from electrically conductive silicone tubing during aerosol chemical analysis
AbstractElectrically conductive silicone tubing is used to minimize losses in sampling lines during the analysis of airborne particle size distributions and number concentrations. We report contamination from this tubing using gas chromatography–mass spectrometry (GC–MS) of filter-collected samples as well as by particle mass spectrometry. Comparison of electrically conductive silicone and stainless steel tubing showed elevated siloxanes only for the silicone tubing. The extent of contamination increased with length of tubing to which the sample was exposed, and decreased with increasing relative humidity.
Contamination from electrically conductive silicone tubing during aerosol chemical analysis
AbstractElectrically conductive silicone tubing is used to minimize losses in sampling lines during the analysis of airborne particle size distributions and number concentrations. We report contamination from this tubing using gas chromatography–mass spectrometry (GC–MS) of filter-collected samples as well as by particle mass spectrometry. Comparison of electrically conductive silicone and stainless steel tubing showed elevated siloxanes only for the silicone tubing. The extent of contamination increased with length of tubing to which the sample was exposed, and decreased with increasing relative humidity.
Contamination from electrically conductive silicone tubing during aerosol chemical analysis
Yu, Yong (author) / Liz Alexander, M. (author) / Perraud, Veronique (author) / Bruns, Emily A. (author) / Johnson, Stanley N. (author) / Ezell, Michael J. (author) / Finlayson-Pitts, Barbara J. (author)
Atmospheric Environment ; 43 ; 2836-2839
2009-02-05
4 pages
Article (Journal)
Electronic Resource
English
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