| 吹扫捕集-气相色谱/质谱法测定地下水中的挥发性有机物 |
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| 引用本文： | 李丽君,汪寅夫,王娜,王海娇.吹扫捕集-气相色谱/质谱法测定地下水中的挥发性有机物[J].岩矿测试,2010,29(5):547-551. |
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| 作者姓名： | 李丽君 汪寅夫 王娜 王海娇 |
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| 作者单位： | 沈阳地质调查中心,辽宁,沈阳,110032 |
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| 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 |
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| 摘 要： | 利用吹扫捕集-气相色谱/质谱联用技术,建立了适用于地下水中氯代烃、苯系物、氯代苯类等25种挥发性有机污染物的分析方法。采用选择离子监测与全扫描交替方式进行质谱定性,内标法定量,方法检出限为0.10～0.20μg/L,样品加标的平均回收率在83.9%～104.5%,相对标准偏差(RSD,n=7)在3.23%～10.1%。方法检出限低,精密度好,分析快速,适用于大批量地下水中挥发性有机物的分析。
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| 关 键 词： | 吹扫捕集 气相色谱-质谱法 地下水 挥发性有机污染物 |
| 收稿时间： | 2010/1/18 0:00:00 |
| 修稿时间： | 2010/5/18 0:00:00 |
Determination of Volatile Organic Compounds in Groundwater by Gas Chromatography-Mass Spectrometry with Purge and Trap Sampling |
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| LI Li-jun,WANG Yin-fu,WANG Na and WANG Hai-jiao.Determination of Volatile Organic Compounds in Groundwater by Gas Chromatography-Mass Spectrometry with Purge and Trap Sampling[J].Rock and Mineral Analysis,2010,29(5):547-551. |
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| Authors: | LI Li-jun WANG Yin-fu WANG Na and WANG Hai-jiao |
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| Institution: | Shenyang Geological Survey Center, Shenyang 110032, China;Shenyang Geological Survey Center, Shenyang 110032, China;Shenyang Geological Survey Center, Shenyang 110032, China;Shenyang Geological Survey Center, Shenyang 110032, China |
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| Abstract: | A method for the determination of 25 volatile organic compounds (VOCs) including halohydrocarbons,benzene series,chlorobenzene compounds and etc.in groundwater samples by purge and trap sampling-gas chromatography-mass spectrometry was developed.Selected ion monitoring (SIM) scan and full scan modes were used for qualitative analysis and the internal standard method for quantitative analysis.The detection limits of the method for the VOCs were 0.10 ～0.20 μg/L.The average recoveries of the method were 83.9% ～104.5% with precision of 3.23% ～ 10.1% RSD (n=7).The method provides the advantages of low detection limits,good precision,high efficiency and is suitable for routine analysis of VOCs in groundwater samples. |
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| Keywords: | purge and trap gas chromatography-mass spectrometry groundwater volatile organic compounds |
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