Determination of dichloroacetic acid and trichloroacetic acid by liquid-liquid extraction and ion chromatography

被引：13

作者：

Ko, YW

Gremm, TJ

Abbt-Braun, G

Frimmel, FH

Chiang, PC

机构：

[1] Univ Karlsruhe, Div Water Chem, Engler Bunte Inst, D-76131 Karlsruhe, Germany

[2] Da Yeh Univ, Dept Environm Engn, Changhua 515, Taiwan

[3] Natl Taiwan Univ, Grad Inst Environm Engn, Taipei 106, Taiwan

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 2000年 / 366卷 / 03期

关键词：

D O I：

10.1007/s002160050048

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An extraction technique using MTBE (methyl tert. butyl ether) and reagent water in combination with ion chromatography and conductivity determination was developed to quantify dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA) concentrations in raw water after chlorination. The detection limit of the method was 0.45 and 1.50 mu g/L for DCAA and TCAA, respectively. Mean values of recovery ranged from 90 to 96% for DCAA and 95 to 108% for TCAA. The evaluation of recovery and precision of the method indicates that the performance characteristics are comparable with gas chromatographic (GC) methods reported in literature. In addition. the procedure is simple, fast, and does not need any derivatization step. Application of the analytical method to the determination of DCAA and TCAA in real samples is shown.

引用

页码：244 / 248

页数：5

共 19 条

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[2]

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