Determination of Benzene Series in Soil and Sediment with Combined Thermal Desorption Gas Chromatography
详细信息
- 责任者：Wang Shuangqing (National Research Center of Geoanalysis ; Beijing 100037 ; China) ; Qin Jing
- 刊名：Petroleum Geology & Experiment
- 出版年：2012
- 卷期：34(1)
- 关键词：苯 ; benzene ; 气相色谱法 ; gas chromatography
- 页码：p.94-98
- 图表：1 illus., 5 tables, 8 refs.
- 分类号：0900
- 出版序号：20130220
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
Systematical experiments was conducted to determine BTEX in soil and sediment using internal standard through combining thermal desorption and gas chromatography. It is suitable to determine BTEX in geochemical survey. The efficiency of 1-bromo-4-fluorobenzene as the internal standard for BTEX determination was investigated, and its mass-peak area linear dependence relations with other single component of BTEX was identified (all above 0.99). The reproducibility, recovery rate and detection limit of the new method was tested with real soil, marine sediment and artificially synthesized samples and achieved satisfying results. The detection limits of the method were below 10 ng/g for each single component of BTEX.