超声萃取-高效液相色谱法测定土壤中高环多环芳烃的研究  

MEASUREMENT OF HIGH MOLECULAR WEIGHT POLYCYCLIC AROMATIC HYDROCARBONS IN SOIL USING ULTRASONIC EXTRACTION AND HPLC

作　　者：范福强[1] 豆俊峰[1] 丁爱中[1] 陈海英[1] 杜勇超[1] 

机构地区：[1]北京师范大学水科学研究院地下水污染控制与修复教育部工程研究中心,北京100875

出　　处：《北京师范大学学报（自然科学版）》2011年第3期296-299,共4页Journal of Beijing Normal University(Natural Science)

基　　金：北京市科技计划资助项目(D08040900300804);国家自然科学基金资助项目(51008026;40873076)

摘　　要：采用美国EPA推荐的较为经典的超声提取方法，结合SPE硅胶柱固相萃取净化处理，并最终用高效液相色谱测试得出分析土壤中高环PAHs含量的方法．对前处理过程中试剂种类和用量对方法准确度的影响进行了探讨，并对此前处理工艺进行了参数优化，最后测试了该方法的回收率，经氘代芘标志物的回收率测试表明该方法的回收率为94％～110％．Polycyclic aromatic hydrocarbons （PAH） are harmful environmental contaminants, especially the high molecular weight PAH （e. g. benzo [a] pyrene）. Before analysis of PAH using high performance liquid chromatography （HPLC）, samples usually require a complex pre-treatment process, which are time- consuming and difficult-to-perform. An analytical procedure for PAH in soil samples using HPLC was established after ultrasonic extraction, a classic method recommended by the U. S. EPA, combined with purification of solid phase extraction （SPE） silica. Different varieties and quantities of reagents were used for method accuracy. Parameters were optimized in pre-treatment process, recovery tests were carried with deuterated pyrene. This method showed a rate of 94% to 110%.

关 键 词：高环多环芳烃 超声萃取 高效液相色谱 土壤 

分 类 号：X132[环境科学与工程—环境科学]