SPE-GC-MS方法分析城市生活污水中多氯联苯的研究

孔祥吉; 李冬; 张杰; 张雪梅; 李克斌

SPE-GC-MS方法分析城市生活污水中多氯联苯的研究

孔祥吉^1,2,
李冬³,
张杰^1,3,
张雪梅⁴,
李克斌⁵

1. 哈尔滨工业大学市政环境工程学院, 哈尔滨 150036;
2. 水污染控制与流域生态保护中心环境保护部南京环境科学研究所, 南京 210042;
3. 水质科学与水环境恢复重点实验室北京工业大学, 北京 100124;
4. 黑龙江省计量检定测试院, 哈尔滨 150036;
5. 北京天恒房地产股份有限公司, 北京 100037

基金项目:

国家“八六三”计划资助项目(2006AA062308).

详细信息

作者简介:
孔祥吉(1979-),男,黑龙江宾人,助理研究员

中图分类号: TU992.3
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- 文章访问数: 13
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出版历程
- 收稿日期: 2008-01-06
- 网络出版日期: 2022-12-09

Determinations of PCBs in Municipal Sewage with SPE-GC-MS

1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China;
2. Center of Water Pollution Control and Basin Ecological Protection, Nanjing Institute of Environmental Science of Ministry of Environmental Protection, Nanjing 210042, China;
3. Key Lab of Water Quality Science and Recovery of Aquatic Environment, Beijing University of Technology, Beijing 100124, China;
4. Academy of Measurement, Verification and Test of Heilongjiang Province, Harbin 150036, China;
5. Beijing Tian Heng Real Estate Corporation Limited, Beijing 100037, China

摘要

摘要: 要得到城市生活污水中多氯联苯的准确含量,必须选择合适的前处理方法.采用C₁₈固相萃取柱富集生活污水中的PCBs,选择最佳用量为10 mL的组合萃取剂丙酮+正己烷(体积比为1∶1)进行萃取,结合浓硫酸洗涤、硅胶柱层析净化和无水硫酸钠干燥的方式深度提取PCBs;以EPA推荐的7种PCBs为外标物,采用GC-MS法对样品中的PCBs进行定性和定量分析.结果表明:城市生活污水中7种PCBs总量为27.75 ng/L.分析方法的相对标准偏差为1.6~8.8%,回收率为84%~103%,检测限达到0.014μg/L.
- 污水 /
- 多氯联苯 /
- 固相萃取 /
- 萃取剂 /
- GC-MS
Abstract: The optimum pretreatment process is especially required in order to get the exact concentration of PCBs in municipal sewage.In the paper, C₁₈ solid-phase extraction(SPE) columns were adopted in the enriching of PCBs in Harbin municipal sewage, and the target compounds were extracted with mixed extractant of acetone and n-hexane of 1:1 in the optimum dosage of 10 milliliter.And the extract was further purified with sulfuric acid, silica gel and anhydrous sodium sulfate.GC-MS was applied in the identification and quantification of PCBs in sewage samples, and seven PCBs congeners recommended by EPA were chosen as the exterior references.It indicated that the total concentration of the seven PCBs in the sewage samples was 27.75 ng/L, the relative standard deviations of the method were in the scope of 1.6%-8.8%, the recoveries were between 84% and 103%, and the lowest detection limit of PCBs was 0.014 μg/L.
- municipal sewage /
- PCBs /
- SPE /
- extractant /
- GC-MS

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参考文献(16)

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SPE-GC-MS方法分析城市生活污水中多氯联苯的研究

作者简介: 孔祥吉(1979-),男,黑龙江宾人,助理研究员

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出版历程

Determinations of PCBs in Municipal Sewage with SPE-GC-MS

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出版历程

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作者简介:
孔祥吉(1979-),男,黑龙江宾人,助理研究员