Development of the analytical method for 1,4-dioxane in water by liquid-liquid extraction

被引:59
作者
Park, YM
Pyo, H
Park, SJ
Park, SK
机构
[1] Korea Inst Sci & Technol, Bioanal & Biotransformat Res Ctr, Seongbuk Gu, Seoul 136791, South Korea
[2] Natl Inst Environm Res, Water Qual Res Dept, Inchon 404170, South Korea
关键词
1.4-Dioxane; water; liquid-liquid extraction; solid-phase extraction; purge and trap method;
D O I
10.1016/j.aca.2005.05.057
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A convenient and simple method for the analysis of 1,4-dioxane in water was developed by liquid-liquid extraction combined with gas chromatography/mass spectrometry and applied to the water samples in Korea. Evaluation of the liquid-liquid extraction method was demonstrated by comparing with two extraction methods, which were solid-phase extraction and purge and trap method. They were referred to the standard methods for the examination of water in Japan and U.S. EPA methods. Liquid-liquid extraction was conducted by using methylene chloride and sodium chloride. This method was combined with gas chromatography/mass spectrometry. Recoveries showed in the range from 86 to 102% with relative standard deviation of 3.0 to 5.2%. The correlation coefficient of the linear regression curve was above 0.99 and method detection limit of 1,4-dioxane was 0.2 ng mL(-1) for 20 mL of water sample. The precision and accuracy were obtained within error rate of 9%. 1,4-Dioxane was detected in the treated water and raw water near Nakdong River from 0 to 240.0 ng mL(-1). It has surveyed constantly with the national problem in Korea. The developed method may be suitable to analyze and observe 1,4-dioxane regularly. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:109 / 115
页数:7
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