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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
引用本文:李晓敏,王璞,李英明,王亚韡,张庆华,江桂斌.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[J].色谱,2010,28(5):449-455.
作者姓名:李晓敏  王璞  李英明  王亚韡  张庆华  江桂斌
作者单位: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
基金项目:环境保护部"大气污染物对土壤质量的影响研究"项目和国家科技支撑计划课题项目 
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0.019pg/m3和0.189pg/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:高分辨气相色谱/高分辨质谱  多氯联苯  多溴联苯醚  大气
收稿时间:2010-1-14
修稿时间:2010-2-15

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.Determination of polychlorinated biphenyls and polybrominated diphenyl ethers in ambient air using high volume sampling and high resolution gas chromatography/high resolution mass spectrometry[J].Chinese Journal of Chromatography,2010,28(5):449-455.
Authors:LI Xiaomin  WANG Pu  LI Yingming  WANG Yawei  ZHANG Qinghua  JIANG Guibin
Institution:State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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.
Keywords:high resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS)  polychlorinated biphenyls (PCBs)  polybrominated diphenyl ethers (PBDEs)  ambient air
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