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DETERMINATION OF REDUCED SULFUR-COMPOUNDS IN THE ATMOSPHERE USING A COTTON SCRUBBER FOR OXIDANT REMOVAL AND GAS-CHROMATOGRAPHY WITH FLAME PHOTOMETRIC DETECTION
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1994 (English)In: Analytical Chemistry, ISSN 0003-2700, E-ISSN 1520-6882, Vol. 66, no 7, 983-987 p.Article in journal (Refereed) Published
Abstract [en]

A method for simultaneous determination of atmospheric dimethyl sulfide (DMS), carbon disulfide (CS2), and dimethyl disulfide (DMDS) is described. Prior to cryogenic trapping, atmospheric oxidants were successfully removed by a new high capacity scrubber system based on 100% cotton wadding in combination with a Nafion drier. Using on-line calibration, the overall accuracy was within +/- 2% for DMS and +/- 15% for CS2 and DMDS. The precision of the method, for relative humidities of less-than-or-equal-to 30% (T = 22-degrees-C), was better than +/- 3% for DMS and about +/- 5% for CS2 and DMDS. Ambient air samples have successfully been taken and analyzed during the International Arctic Ocean Expedition (IAOE) in the summer and fall of 1991. The main compound present was DMS in concentrations ranging from 1 (detection limit) to 370 ppt(v).

Place, publisher, year, edition, pages
1994. Vol. 66, no 7, 983-987 p.
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Natural Sciences
Research subject
SWEDARCTIC 1991, Arctic Ocean 1991
Identifiers
URN: urn:nbn:se:polar:diva-3347DOI: 10.1021/ac00079a009OAI: oai:DiVA.org:polar-3347DiVA: diva2:1055564
Available from: 2016-12-12 Created: 2016-12-12 Last updated: 2016-12-12

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