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三重串联四极杆气相质谱联用仪测定饮用水源地水体中的多氯联苯
引用本文:朱文萍,吕康乐,陈迪云.三重串联四极杆气相质谱联用仪测定饮用水源地水体中的多氯联苯[J].中国环境监测,2012,28(2):61-64.
作者姓名:朱文萍  吕康乐  陈迪云
作者单位:1. 甘肃省环境监测中心站,甘肃兰州,730030
2. 广州大学环境科学与工程学院,广东广州,510006
摘    要:建立了以液-液萃取、三重串联四极杆气相质谱多反应监测法同时测定饮用水源地水体中18种多氯联苯的方法,给出了测量线性范围,线性关系良好,相关系数大于0.998。水中加标浓度为1.00、5.00、10.0ng/L时,平均加标回收率分别为75.6%~96.0%、90.6%~105%和92.4%~102%,相对标准偏差分别为19.8%~11.8%、4.2%~12.9%和4.3%~9.9%,检出限为0.29~0.57ng/L。结果表明,在测定水体中痕量多氯联苯方面,三重串联四极杆气相质谱相对于气相色谱-电子捕获检测和气相色谱质谱-选择离子检测具有更高的灵敏度和准确度,具有更广泛的应用。

关 键 词:三重串联四极杆气相质谱  多反应监测  多氯联苯  地表水
收稿时间:2010/7/25 0:00:00
修稿时间:2010/11/30 0:00:00

Determination of Polychlorinated Biphenyls in Surface Water by Gas Chromatography Coupled to Triple Quadrupole Mass Spectrometry
ZHU Wen-ping.Determination of Polychlorinated Biphenyls in Surface Water by Gas Chromatography Coupled to Triple Quadrupole Mass Spectrometry[J].Environmental Monitoring in China,2012,28(2):61-64.
Authors:ZHU Wen-ping
Institution:Gansu Province Environmental Monitoring Centre, Lanzhou 730030, China;Gansu Province Environmental Monitoring Centre, Lanzhou 730030, China
Abstract:The methods for determination of 18 kinds of PCBs in Surface Water by Gas Chromatography Coupled to Triple Quadrupole Mass Spectrometry were established and the parameters were optimized.The methods was linear over the range from 1.01μg/L to 80.0μg/L with correlation coefficients >0.998.Average recoveries of the 18 kinds of PCBs at 1.00ng/L,5.00ng/L and 10.0ng/L into water were in the range of 75.6%~96.0%,90.6%~105 % and 92.4%~102%,the relative standard deviations in the ranger of 19.8%~11.8%,4.2%~ 12.9% and 4.3%~9.9%,calculated limits of detection were between 0.29ng/L and 0.57ng/L.Compared to GC-ECD and GC-MS,the GC-MS-MS have higher sensitivity and accuracy,and can be used universality in trace analysis of water.
Keywords:GC-MS-MS  MRM  PCBs  Surface water
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