| 气相色谱法测定地下水的乙醇和单环芳香烃 |
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| 引用本文： | 梁美娜,陈余道,张燕,渠光华.气相色谱法测定地下水的乙醇和单环芳香烃[J].环境科学与技术,2009,32(11). |
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| 作者姓名： | 梁美娜 陈余道 张燕 渠光华 |
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| 作者单位： | 桂林工学院资源与环境工程系,广西环境丁程与保护评价重点实验室,广西,桂,林541004 |
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| 基金项目： | 国家自然科学基金项目，广西环境工程与保护评价重点实验室研究基金资助 |
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| 摘 要： | 探讨了同时测定地下水中乙醇和单环芳香烃的顶空气相色谱方法。水中的乙醇和微量芳香烃经过顶空提取后,应用HP-5毛细管色谱柱,利用分流与不分流进样口进样,同时采用程序升温方式进行GC分析,以保留时间定性,外标法定量。研究结果表明,乙醇、苯、甲苯、乙苯、对二甲苯和间二甲苯、邻二甲苯的线性范围分别为0.38~189.36mg/L、6.0~1500.0μg/L、6.0~1500.0μg/L、6.0~1500.0μg/L、12.0~3000.0μg/L和6.0~1500.0μg/L,最低检出浓度为137.14μg/L、0.62μg/L、0.55μg/L、0.51μg/L、0.51μg/L和0.59μg/L,水样加标回收率为91.91%L~106.35%L,RSD为2.79%L~3.76%L。表明该方法一次性完成地下水中乙醇和单环芳香烃的分离和测定,分析时间仅为15min,操作简便、灵敏。
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| 关 键 词： | 单环芳香烃 乙醇 地下水 气相色谱法 同时测定 |
Determination of Ethanol and Mono-aromatic Hydrocarbons in Groundwater by Headspace GC |
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| LIANG Mei-na,CHEN Yu-dao,ZHANG Yan,QU Guang-hua.Determination of Ethanol and Mono-aromatic Hydrocarbons in Groundwater by Headspace GC[J].Environmental Science and Technology,2009,32(11). |
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| Authors: | LIANG Mei-na CHEN Yu-dao ZHANG Yan QU Guang-hua |
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| Abstract: | The objective of the study is to establish a method for simultaneously determining ethanol and mono-aromatic hydrocarbons existing in groundwater which is in association with contamination of ethanol blended gasoline. The equipment used in the analytical study involves the Agilent 6890N GC,headspace sampler,capillary column and a flame ionization detector. The parameters which are obtained in the experiment and prove validity of the method includes the linear range, detection limits,recovery rates and RSD for ethanol and benzene. |
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| Keywords: | mono-aromatic hydrocarbons ethanol groundwater gas chromatography simultaneous detection |
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