摘要
为寻求重度风化溢油来源指标 ,依据有机地球化学相关研究成果 ,本文选定分子量大、水溶性小、抗风化的甾烷作为重度风化溢油的指示物 (或指标 )。将辽河原油等 15种原油作为研究对象 ,进行室内和室外模拟风化试验 ,用毛细管GC MS对不同环境 (海水、淡水、沙土等 )中风化 1a后的溢油进行检测。结果发现 ,油种间甾烷及其比值参数差异较大 ,在 1a的风化过程中受风化影响较小 ,可以作为重度风化溢油的指示物 (或指标 )。
Steranes with large molecular weight and tiny water solubility and strong anti weathered characters, as a indicators of heavy weathered oil spills, have been selected in this paper. The idea of this study results from the suggestion of the fruits of the relative research in the field of organic geochemistry. The weathering processes for Liao He crude oil and other 14 kinds of crude oil were made in seawater and freshwater and sand and the indoor and outdoor simulation experiments during more than a year. The determinations of steranes of oil spills were done with capillary gas chromatography mass (GC MS). It can be found that the difference of the content among variable oils is great and in contrast the content in the same kind of oil is relatively stable even in the affect of the weathering. It can be sure that steranes may be used as a indicator of heavy weathered oil spills.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2002年第1期13-20,45,共9页
Marine Environmental Science
基金
国家自然科学基金资助项目 (2 97770 0 4 )
关键词
重度风化溢油
甾烷
指示物(或指标)
heavy weathered oil spills
steranes
indicators of oil spills
