色谱

色谱

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大流量采样高分辨气相色谱/高分辨质谱法测定大气中的多氯联苯和多溴联苯醚

李晓敏, 王璞, 李英明, 王亚韡, 张庆华*, 江桂斌   

  1. 环境化学与生态毒理学国家重点实验室, 中国科学院生态环境研究中心, 北京 100085
  • 收稿日期:2010-01-14 修回日期:2010-02-15 出版日期:2010-05-28 发布日期:1980-09-25
  • 通讯作者: 张庆华

Determination of polychlorinated biphenyls and polybrominated diphenyl ethers in ambient air using high volume sampling and high resolution gas chromatography/high resolution mass spectrometry

LI Xiaomin, WANG Pu, LI Yingming, WANG Yawei, ZHANG Qinghua*, JIANG Guibin   

  1. State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2010-01-14 Revised:2010-02-15 Online:2010-05-28 Published:1980-09-25
  • Contact: ZHANG Qinghua

PDF

698

被引次数

39

摘要： 建立了大流量空气采样高分辨气相色谱/高分辨质谱(HRGC/HRMS)同时分析测定大气样品中多氯联苯(PCBs)和多溴联苯醚(PBDEs)的分析方法。结果表明在采样过程中污染物没有发生穿透。通过添加 13C同位素标准物质进行评价,PCBs和PBDEs的加标回收率分别为60.7%～121.4%和69.9%～140.4%,均符合美国环保署相关方法的要求。PCBs和PBDEs的方法检出限分别低于0.019 pg/m3和0.189 pg/m3;色谱分离效果良好,可以满足大气样品中PCBs和PBDEs的监测需要。

关键词: 大气 , 多氯联苯, 多溴联苯醚, 高分辨气相色谱/高分辨质谱

Abstract: A method for the determination of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in ambient air using high volume sampling and high resolution gas chromatography coupled with high resolution mass spectrometry (HRGC/HRMS) was developed. The results indicated that no breakthrough happened during the sampling procedure. The recoveries of 13C labeled compound standards of PCBs and PBDEs were in the ranges of 60.7%~121.4% and 69.9%~140.4%, respectively, which were qualified by the corresponding EPA methods. The limits of detection (LODs) of PCBs and PBDEs in real samples were lower than 0.019 pg/m3 and 0.189 pg/m3, respectively. The chromatograms of PCBs and PBDEs show good performance in the separation. It is demonstrated that the method is suitable for the determination of PCBs and PBDEs in ambient air.

Key words: ambient air , polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), high resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS)