Silylation Derivatization for the Detection of Hydrozylated Polychlorinated Bipheny in Aquatic Products by GC/MS
The present study established a method to determine 7 hydroxy metabolites of polychlorinated biphenyls (PCBs) in aquatic products.Target compunds were extracted by hexane/ethyl acetate (v/v,1:1). Sulfuric acid and silica column were used to remove the impurities with 50ml of hexane/ethyl acetate (v/v,1:1) as eluet. Silylation derivatization was effective and stable to make hydroxylated polychlorinated biphenyls more volitile for GC/MS analysis. The coefficients of derivivatives ranged from 0.996 to 0.999 in the range of 1-100ng/g. Recoveries of spiked tissues prepared with this method ranged from 76.7％ to 106％, and the relative standard deviations (RSD) ranged from 4.0％ to 11.1％. The method was applied to determine hydroxy-PCBs in aquatic products sampled from local market.
hydrozy-PCBs GC/MS aquatic products silylation derivatization
Yong-fu Shi You-qiong Cai Hong Lin Dong-mei Huang Yuan Wang
Ocean University of China Qingdao,China,266003 East China Sea Fishery Research Institute,Chinese Academy of fishery Sciences (CAFs) Shanghai,China,
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）