Detection of 1,4-dioxane in water by membrane extraction-gas chromatography/differential mobility spectrometry

被引：2

作者：

Liang Xixi ^{[1
,2
]}

Chen Chuang ^{[1
]}

Wang Weiguo ^{[1
]}

Li Haiyang ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

[2] Dalian Univ, Dalian 116622, Peoples R China

来源：

CHINESE JOURNAL OF CHROMATOGRAPHY | 2014年 / 32卷 / 08期

关键词：

membrane extraction device; gas chromatography/differential mobility spectrometry (GC/DMS); 1,4-dioxane; chlorinated hydrocarbons; water;

D O I：

10.3724/SP.J.1123.2014.04035

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The method of detecting trace 1,4-dioxane in water using membrane extraction coupled with gas chromatography/differential mobility spectrometry (GC/DMS) was developed. The parameters including radio frequency voltage, sampling flow rate, permeation time and trapping time were optimized to 1000 V, 50 mL/min, 30 min and 150 s, respectively. The linear range for dioxane was obtained from 2.0 mu g/L to 20.0 mu g/L. The LOD was found to be 0.67 mu g/L. The specificity towards 1,4-dioxane in the presence of five chlorinated hydrocarbons was improved by using two-dimensional GC separation with optimized DMS compensation voltage. This method paves a way for developing field-deployable sensors for real-time monitoring contaminants in groundwater.

引用

页码：837 / 842

页数：6

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