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| 地下水中挥发性有机物的吹扫捕集-气相色谱-质谱法测定 | |
| 引用本文： | 李义,董建芳,张宇. 地下水中挥发性有机物的吹扫捕集-气相色谱-质谱法测定[J]. 岩矿测试, 2010, 29(5): 513-517 |
| 作者姓名： | 李义 董建芳 张宇 |
| 作者单位： | 1. 河北省环境地质勘查院,河北,石家庄,050021 2. 中国矿业大学(北京)地球科学与测绘工程学院,北京,100083 |
| 基金项目： | 国土资源地质大调查--地下水污染测试技术研究项目资助 |
| 摘 要： | 建立了吹扫捕集-气相色谱-质谱法同时测定地下水中卤代烃类、苯系物、氯代苯类等20多种挥发性有机物的方法。对吹扫捕集条件、气相色谱条件和质谱条件进行优化,并对实际水样进行测定。方法检出限为0.03～0.28μg/L,基体加标回收率为88.8%～111.0%,精密度(RSD,n=7)为2.21%～5.31%。方法准确,灵敏可靠,可满足地下水中痕量挥发性有机物的分析要求。 |
| 关 键 词： | 吹扫捕集 气相色谱-质谱法 地下水 挥发性有机物 |
| 收稿时间： | 2010-01-18 |
| 修稿时间： | 2010-06-03 |
Gas Chromatography-Mass Spectrometric Determination of Volatile Organic Compounds in Groundwater with Purge and Trap Sampling |
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| LI Yi,DONG Jian-fang and ZHANG Yu. Gas Chromatography-Mass Spectrometric Determination of Volatile Organic Compounds in Groundwater with Purge and Trap Sampling[J]. Rock and Mineral Analysis, 2010, 29(5): 513-517 | |
| Authors: | LI Yi DONG Jian-fang ZHANG Yu |
| Affiliation: | Hebei Institute of Environmental Geological Exploration, Shijiazhuang 050021, China;Hebei Institute of Environmental Geological Exploration, Shijiazhuang 050021, China;College of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing 100083, China |
| Abstract: | A method was developed for simultaneous detection of more than 20 volatile organic compounds (VOCs) including halogenated hydrocarbons,benzene series compounds,aromatic hydrocarbons and chlorinated benzenes in groundwater by gas chromatography-mass spectrometry with purge and trap sampling.The experimental conditions of purge and trap sampling and gas chromatography-mass spectrometric determination were optimized.The detection limits of the method for the volatile organic compounds were 0.03 ～ 0.28 μg/L.The recovery rates were 88.8% ～ 111.0% with precision of 2.21% ～ 5.31% RSD (n=7).The results show that the method is sensitive,accurate and suitable for the determination of trace VOCs in groundwater. |
| Keywords: | purge and trap gas chromatography-mass spectrometry groundwater volatile organic compound |
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