不同萃取方法对长江口边滩多环芳烃萃取效果的影响  

Effect of extracting methods on the extraction efficiency of PAHs collected from the Yangtze estuarine and coastal areas

作　　者：张谦栋[1] 刘敏[1] 欧冬妮[1] 杨毅[1] 李勇[1] 

机构地区：[1]华东师范大学资源与环境科学学院,教育部地理信息科学重点实验室,上海200062

出　　处：《环境污染与防治》2011年第10期15-18,共4页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.40971268、No.40801201、No.51009068);中国博士后基金资助项目(No.20080440605)

摘　　要：选取索氏提取法和加速溶剂萃取仪(ASE)提取法,对长江口边滩样品进行多环芳烃萃取实验,并利用气相色谱/质谱仪对萃取出来的多环芳烃进行定量分析,研究了不同萃取方法以及不同溶剂条件下多环芳烃的总量、分布特征。结果表明,长江口边滩多环芳烃最高值出现在吴淞口;索氏提取法在多环芳烃萃取效果上优于加速溶剂萃取仪提取法;混合溶剂萃取效果要优于单一溶剂。The sediment samples collected from Yangtze estuarine and coastal areas were extracted by Soxhlet extracting method and accelerated solvent extraction method.The extracted liquids were determined by GC/MS.The effect of extraction method and solvent on the concentration,distribution and types of extracted PAHs were analyzed.The results showed that the highest concentration of PAHs was found at Wusongkou;Soxhlet extracting method was better than accelerated solvent extraction method in the extraction efficiency;mixed solvent presented better performance than single solvent extraction in PAHs extraction.

关 键 词：多环芳烃 索氏提取 加速溶剂萃取仪提取 混合溶剂萃取 单一溶剂萃取 

分 类 号：X832[环境科学与工程—环境工程]