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土壤样品挥发性有机物定量分析时基体的选择及处理研究
引用本文:刘梅,贾静,饶竹,梁汉东.土壤样品挥发性有机物定量分析时基体的选择及处理研究[J].分析试验室,2009,28(8).
作者姓名:刘梅  贾静  饶竹  梁汉东
作者单位:1. 国家地质实验测试中心,北京,100037;中国矿业大学,北京,100083
2. 中国矿业大学,北京,100083
3. 国家地质实验测试中心,北京,100037
基金项目:国土资源地质大调查项目 
摘    要:采用传统的索氏抽提、超声萃取、振荡器提取、快速溶剂萃取(ASE)以及微波萃取等方法对不同的基体土进行了对比处理及P&T-GC-MS(吹扫捕集-气相色谱质谱联用仪)检测分析. 实验数据表明: 用索氏抽提可以获得洁净基体土. 比较而言, 石英砂处理效果更好. 3种替代物在石英砂中的回收峰面积较高, 可得到较低的方法检出限.

关 键 词:基体土  挥发性有机物  定量分析  索氏抽提  回收率

Study on selection and disposal of matrixes in the process of quantitative analysis of VOCs in soil samples
LIU Mei,JIA Jing,RAO Zhu,LIANG Han-dong.Study on selection and disposal of matrixes in the process of quantitative analysis of VOCs in soil samples[J].Chinese Journal of Analysis Laboratory,2009,28(8).
Authors:LIU Mei  JIA Jing  RAO Zhu  LIANG Han-dong
Institution:1.China Geology Center for Experiment and Analysis;Beijing 100037;2.China University of Mining and Technology;Beijing 100083
Abstract:Determination of VOCs(volatile organic compounds) in soils is the hot topics in recent years.In order to make the analysis results credible,similar matrixes are necessary.Before soil samples are analyzed by GC,how to gain cleaner matrix is of great importantance.In this paper Sohlet extraction,ultrasonic extraction,oscillation extraction,ASE(accelerated solvent extraction) and microwave extraction were used to deal with soil and quartzite matrixes.It is found that using Sohlet extration to dispose soil or q...
Keywords:Matrix  VOCs  Quantitative analysis  Sohlet extraction  Recovery
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