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제목   [14.01월] 이기택 교수 연구실 Improved Method for Minimizing Sulfur Loss in Analysis of 2 Particulate Organic Sulfur   이름  관리자
날짜  2014-01-20 11:27:15 조회  2043 추천  0
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Title: Improved Method for Minimizing Sulfur Loss in Analysis of  Particulate Organic Sulfur

 

Authors: Ki-Tae Park, Kitack Lee, Kyoungsoon Shin, Hae Jin Jeong, and  Kwang Young Kim

Journal: analytical chemistry

Abstract:

The global sulfur cycle depends primarily on the metabolism of marine microorganisms, which release sulfur gas into the atmosphere and thus affect the redistribution of sulfur globally as well as the earth’s climate system. To better quantify sulfur release from the ocean, analysis of the production and distribution of organic sulfur in the ocean is necessary. This report describes a wet-based method for accurate analysis of particulate organic sulfur (POS) in the marine environment. The proposed method overcomes the considerable loss of sulfur (up to 80%) that occurs during analysis using conventional methods involving drying. Use of the wet-based POS extraction procedure in conjunction with a sensitive sulfur analyzer enabled accurate measurements of cellular POS. Data obtained using this method will enable accurate assessment of how rapidly sulfur can transfer among pools. Such information will improve understanding of the role of POS in the oceanic sulfur cycle.


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