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东湖水体中多氯联苯的研究
习志群^1,2, 储少岗^1,2, 徐晓白^1,2, 张甬元^3,4, 徐盈^3,4
1.中国科学院生态环境研究中心北京;2.100085;3.中国科学院水生生物研究所武汉;430072

摘要:

于1994年6月，采用高分子多孔聚合树脂对武汉东湖水进行富集采样，样品经净化后利用毛细管柱色谱进行多氯联苯（PCBs）总量及同类物（congeners）的分离测定。结果表明，东湖水样中PCBs总含量为2.7 ng/L，检出的20多个PCBs同类物其含量分别在0.002-1.12 ng/L范围内。其同类物中低氯取代的PCBs相对含量明显高于工业用商品PCBs中的相应含量。

关键词: PCBs 水体污染武汉东湖

DOI：

分类号:

基金项目:国家自然科学基金项目，29477286号

DETERMINATION OF POLYCHLORINATED BIPHENYLS IN DONGHU LAKE

XI Zhi-qun,CHU Shao-gang,XU Xiao-bai,ZHANG Yong-yuan,XU Ying

1.Research Center for Eco-Environmental Sciences, The Chinese Academy of Sciences, Beijing, 100085;2.Institute of Hydrobiology, The Chinese Academy of Sciences, Wuhan, 430072

Abstract:

Water samples were collected from Donghu Lake in June 1994 and preconcentrated using XAD-2 resin. The polychlorinated biphenyls (PCBs) fraction of the sample was analyzed by high resolution GC. The concentration of PCBs in Donghu Lake was 2.7 ng/L and the concentrations of individual congeners of PCBs ranged between 0.002 and 1.12 ng/L. The percentages of congeners with a relatively small number of substituted chlorine atoms in the sample were apparently higher than those in commercial PCBs.

Key words: Polychlorinated biphenyls, Water pollution, Donghu Lake of Wuhan

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