多环芳烃指纹用于渤海采油平台原油的鉴别  

Identification of crude oils in Bohai Sea by polycyclic aromatic hydrocarbon fingerprinting

作　　者：赵玉慧[1] 孙培艳[1] 王鑫平[1] 曹丽歆[1] 周青[1] 李光梅[1] 高振会[1] 

机构地区：[1]国家海洋局北海环境监测中心国家海洋局海洋溢油鉴别与损害评估技术重点实验室,山东青岛266033

出　　处：《色谱》2008年第1期43-49,共7页Chinese Journal of Chromatography

基　　金：国家重点基础研究发展规划项目计划(2002CB412406);国家高技术研究发展项目(2003AA635180);国家海洋局重点科研课题(油指纹库关键技术研究)资助

摘　　要：采用气相色谱/质谱方法,对渤海海上4个不同区块、5个平台的6口油井原油进行了烷基化多环芳烃系列化合物和美国环保署(EPA)优先控制多环芳烃系列化合物的准确定性定量分析。通过多环芳烃原始指纹谱图、多环芳烃组分分布模式和特征比值的比较对上述原油进行鉴别。结果证明不同区块的原油中多环芳烃指纹信息不尽相同,即使在同一平台不同油井中所产的原油其指纹也存在一定差异。为确保原油鉴别的准确性,分析过程中必须在仪器的稳定性和样品前处理方面实施严格的质量控制措施。Crude oils from different sources have quite different polycyclic aromatic hydrocarbon （PAH） distributions. Also, many PAH compounds are more resistant to weathering than their saturated counterparts （n-alkanes and isoprenoids） and volatile alkylbenzene compounds, thus PAHs become one of the most valuable classes of hydrocarbons for oil identification using fingerprinting. A reliable, effective, and accurate gas chromatography/mass spectrometry （GC/MS） method for the differentiation and source identification of crude oils by the use of PAH compounds is described. PAH components of 6 crude oil samples from 5 different platforms in 4 different oil fields in Bohai Sea were analyzed by GC/MS. Using different methods, such as the comparisons of original fingerprinting, characteristic information, and diagnostic ratios of PAHs, 6 crude oil samples were identified completely, which showed distinctive characteristics of the same platform oils. Mthough distinction was diminutive, it can still be identified by GC/MS. PAHs could be used in weathering check of spilled oils in identification and to ensure the correctness of the identification.

关 键 词：气相色谱/质谱 指纹鉴别 多环芳烃 原油 

分 类 号：O658[理学—分析化学]