| 气相色谱-质谱法测定水中8种多氯联苯 |
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| 引用本文： | 刘清辉,曹攽,马军,李云木子.气相色谱-质谱法测定水中8种多氯联苯[J].岩矿测试,2010,29(5):523-526. |
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| 作者姓名： | 刘清辉 曹攽 马军 李云木子 |
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| 作者单位： | 浙江省地质矿产研究所,浙江,杭州,310007 |
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| 基金项目： | 国土资源地质大调查--地下水污染测试技术研究项目资助 |
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| 摘 要： | 以正己烷为提取剂,对水中PCB15、PCB28、PCB52、PCB101、PCB118、PCB138、PCB153、PCB180共8种多氯联苯(PCBs)单体经液-液提取、浓缩后,采用气相色谱-质谱联用选择离子扫描法测定,8种PCBs单体的检测限均小于2.5ng/L。低浓度PCBs的回收率为88.5%～104.0%,相对标准偏差(RSD,n=5)为3.5%～9.7%;高浓度PCBs的回收率为90.3%～102.0%,相对标准偏差(n=5)为2.6%～8.3%。方法具有良好的灵敏度和选择性,适用于批量水样中多氯联苯的测定。
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| 关 键 词： | 多氯联苯 水 气相色谱-质谱法 |
| 收稿时间： | 2010/1/18 0:00:00 |
| 修稿时间： | 2010/5/25 0:00:00 |
Determination of 8 Polychlorinated Biphenyls in Water Samples by Gas Chromatography-Mass Spectrometry |
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| LIU Qing-hui,CAO Ban,MA Jun and LI Yun-mu-zi.Determination of 8 Polychlorinated Biphenyls in Water Samples by Gas Chromatography-Mass Spectrometry[J].Rock and Mineral Analysis,2010,29(5):523-526. |
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| Authors: | LIU Qing-hui CAO Ban MA Jun and LI Yun-mu-zi |
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| Institution: | Zhejiang Institute of Geological and Mineral Resources, Hangzhou 310007, China;Zhejiang Institute of Geological and Mineral Resources, Hangzhou 310007, China;Zhejiang Institute of Geological and Mineral Resources, Hangzhou 310007, China;Zhejiang Institute of Geological and Mineral Resources, Hangzhou 310007, China |
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| Abstract: | Eight polychlorinated biphenyls(PCBs) of PCB 15, PCB 28, PCB 52, PCB 101, PCB 118, PCB 138, PCB 153 and PCB 180 in water samples were extracted by hexane, concentrated by evaporator and then determined by gas chromatography-mass spectrometry (GC-MS). The detection limits of the method for these PCBs were lower than 2.5 ng/L. The recoveries of the method for the pollutants in samples with both low and high PCBs concentrations were 88.5%~104.0% and 90.3%~102.0% with precisions of 3.5%~9.7% RSD (n=5) and 2.6%~8.3% RSD (n=5), respectively. The method provides the advantages of high sensitivity, good selectivity and is suitable for routine analysis of PCBs in water samples. |
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| Keywords: | polychlorinated biphenyls water gas chromatography-mass spectrometry |
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