| 土壤中23种挥发性氯代烃和苯系物的测定 |
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| 引用本文： | 李丽君,何炼,边景辉,孙宁.土壤中23种挥发性氯代烃和苯系物的测定[J].地质与资源,2012,21(1):151-155. |
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| 作者姓名： | 李丽君 何炼 边景辉 孙宁 |
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| 作者单位： | 1. 沈阳地质矿产研究所, 辽宁 沈阳 110032;2. 沈阳化工股份有限公司, 辽宁 沈阳 110026 |
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| 摘 要： | 建立了同时测定土壤中23种挥发性氯代烃和苯系物的吹扫捕集-气相色谱-质谱法.优化了试验条件，标准曲线在0.32×10-9~200.0×10-9范围内呈线性关系，方法检出限（3S/N）为0.077×10-9~0.69×10-9，样品标准添加平均回收率86.5%~117.5%，相对标准偏差（n=7）在1.6%~8.2%之间.
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| 关 键 词： | 氯代烃 苯系物 气相色谱-质谱法 吹扫捕集 土壤 |
| 收稿时间： | 2011-10-31 |
SIMULTANEOUS DETERMINATION OF 23 VOLATILE CHLORINATED HYDROCARBONS AND BENZENE SERIES IN SOIL SAMPLES |
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| LI Li-jun
,
HE Lian
,
BIAN Jing-hui
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SUN Ning.SIMULTANEOUS DETERMINATION OF 23 VOLATILE CHLORINATED HYDROCARBONS AND BENZENE SERIES IN SOIL SAMPLES[J].Geology and Resources,2012,21(1):151-155. |
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| Authors: | LI Li-jun HE Lian BIAN Jing-hui SUN Ning |
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| Institution: | 1. Shenyang Institute of Geology and Mineral Resources, CGS, Shenyang 110032, China;2. Shenyang Chemical Co. Ltd., Shenyang 110026, China |
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| Abstract: | A method for simultaneous determination for 23 volatile chlorinated hydrocarbons and benzene series in soil samples by gas chromatography-mass spectrometry （GC-MS） with purge and trap pretreatment is introduced. The conditions of purge and trap, the qualification of GC-MS, and the centrifuge are confirmed. Under the best conditions, the liner range of the standard curve is 0.32 - 200.0 Ixg/kg. The detection limits range of the method for the 23 volatile organic compounds are 0.077 - 0.69 μg/kg. The average recoveries are 86.5% to 117.5%, with precision of 1.6% - 8.2% （n = 7）. This fast and accurate method can be applied to determinate the 23 volatile organic compounds in batch soil samples with satisfactory results. |
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| Keywords: | chlorinated hydrocarbons benzene series gas chromatography-mass spectrometry purge and trap soil |
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