引用本文:刘春莉,胡圆园,陈慕义,张棋.车载顶空-气相色谱质谱法在水体挥发性有机污染物应急监测中的应用[J].环境监控与预警,2017,9(2):27-30
LIU Chun li, HU Yuan yuan, CHEN Mu yi, ZHANG Qi.The Application of Vehicle Headspace-GC/MS for Emergency Monitoring of VOCs in Water[J].Environmental Monitoring and Forewarning,2017,9(2):27-30
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车载顶空-气相色谱质谱法在水体挥发性有机污染物应急监测中的应用
刘春莉,胡圆园,陈慕义,张棋
泸州市环境监测中心站,四川 泸州 646000
摘要:
建立了车载顶空-气相色谱质谱法(GC/MS)测定水中22种挥发性有机物(VOCs)的方法,顶空平衡温度和平衡时间的最优设置分别为80℃和30min。该方法各目标化合物分离良好,在目标化合物质量浓度5~100μg/L范围内,线性良好,相关系数均>0.995,方法的检出限为1.16~2.88μg/L,RSD为7.71%~26.5%,加标回收率为52.3%~129%,能够满足应急监测工作的需要。
关键词:  挥发性有机物  车载顶空-GC/MS  应急监测
DOI:
分类号:X832;O657.7+1;O657.63
文献标识码:B
基金项目:
The Application of Vehicle Headspace-GC/MS for Emergency Monitoring of VOCs in Water
LIU Chunli, HU Yuanyuan, CHEN Muyi, ZHANG Qi
Luzhou Environmental Monitoring Center, Luzhou,Sichuan 646000,China
Abstract:
The method for vehicle headspace gas chromatography and mass spectrometry(GC/MS)were established to analyze 22 kinds of volatile organic compounds (VOCs) in water. Under the optimal conditions, good linearities were obtained in the range of 5~100μg/L with correlation coefficients greater than 0.995. The limits were 1.16~2.88μg/L. The relative standard deviations ranged from 7.71% to 26.5%, and the recoveries were 52.3%~129% . The results showed that the current method could satisfy the demand of emergency monitoring.
Key words:  VOCs  Vehicle headspace-GC/MS  Emergency monitoring