title: [Detection of 1,4-dioxane in water by membrane extraction-gas chromiatgraphy/differential mobility spectrometry].
abstract: 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 μg/L to 20.0 μg/L. The LOD was found to be 0. 67 μg/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.
authors.forename: Xixi
authors.initials: X
authors.lastname: Liang
authors.forename: Chuang
authors.initials: C
authors.lastname: Chen
authors.forename: Weiguo
authors.initials: W
authors.lastname: Wang
authors.forename: Haiyang
authors.initials: H
authors.lastname: Li