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<sup>*</sup>; 陈慕义; 张棋

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（VOC_s）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 （VOC_s） 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: VOC_s Vehicle headspace-GC/MS Emergency monitoring