A. Louati, B. Elleuch, P. Sandra, F. David, A. Saliot, J. Dagaut, J. Oudot
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引用次数: 7
Abstract
A series of unknown cyclic compounds was detected in the capillary GC-MS analyses of extracts of marine sediments from the Tunisian coast at the Mediterranean sea. Using capillary GC-atomic emission detection (AED), sulphur was elucidated in their structure. This allowed identification of the solutes as the thiosteranes 5-α-cholestane-3-β-thiol, 24-methyl-5-α-cholestane-3-β-thiol, and 24-ethyl-5-α-cholestane-3-β-thiol. These sulphur compounds are formed from Δ-2 sterenes and probably originate from plankton. The presence of these thiols in coastal sediments varies considerably with the location of the sampling points, indicating that they are potential markers for environmental pollution. © 2001 John Wiley & Sons, Inc. J Micro Sep 13: 90–95, 2001
毛细管气相色谱-质谱法和毛细管气相色谱- aed法测定地中海污染海洋沉积物中的硫代甾烷*
在地中海突尼斯海岸的海洋沉积物提取物的毛细管气相色谱-质谱分析中检测到一系列未知的环状化合物。采用毛细管气相色谱-原子发射检测(AED)对硫的结构进行了分析。这使得溶质被鉴定为硫甾烷5-α-胆甾烷-3-β-硫醇，24-甲基-5-α-胆甾烷-3-β-硫醇和24-乙基-5-α-胆甾烷-3-β-硫醇。这些含硫化合物是由Δ-2甾烷形成的，可能来源于浮游生物。这些硫醇在沿海沉积物中的存在随着采样点的位置而变化很大，表明它们是环境污染的潜在标志。©2001 John Wiley &儿子，Inc. J Micro . Sep 13: 90-95, 2001
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