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An analytical system enabling consistent and long-term measurement of atmospheric dimethyl sulfide

Cited 4 time in scopus
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Title
An analytical system enabling consistent and long-term measurement of atmospheric dimethyl sulfide
Other Titles
북극 대기 디메틸황의 장기간 정밀 분석을 위한 자동분석시스템 개발
Authors
Jang, Sehyun
Suh, Young-Sang
Lee, Kitack
Park, Ki-Tae
Subject
Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
Keywords
Arctic Ocean; atmospheric monitoring; climate feedback; dimethyl sulfide
Issue Date
2016
Citation
Jang, Sehyun, et al. 2016. "An analytical system enabling consistent and long-term measurement of atmospheric dimethyl sulfide". ATMOSPHERIC ENVIRONMENT, 134: 217-223.
Abstract
We describe here an analytical system capable of continuous measurement of atmospheric dimethylsulfide (DMS) at pptv levels. The system used customized devices for detector calibration and for DMS trapping and desorption that were controlled using a data acquisition system (based on Visual Basic 6.0/C 6.0) designed to maximize the efficiency of DMS analysis in a highly sensitive pulsed flame photometric detector housed in a gas chromatograph. The fully integrated system, which could sample approximately 6 L of air during a 1-hr sampling, was used to measure the atmospheric DMS mixing ratio over the Atlantic sector of the Arctic Ocean over the 3-full growth periods of phytoplankton in 2010, 2014, and 2015, with minimal routine maintenance and interruptions. During the field campaigns, the measured atmospheric DMS mixing ratio varied over a considerable range, from < 1.5 pptv to maximum levels of 298 pptv in 2010, 82 pptv in 2014, and 429 pptv in 2015. The operational period covering the 3-full growing seasons of phytoplankton showed that the system is suitable for uninterrupted measurement of atmospheric DMS mixing ratios in extreme environments. Moreover, the findings obtained using the system showed it to be useful in identifying ocean DMS source regions and changes in source strength.
URI
http://repository.kopri.re.kr/handle/201206/6215
DOI
http://dx.doi.org/10.1016/j.atmosenv.2016.03.041
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