Analysis of low molecular weight organic acids in water with capillary zone electrophoresis employing indirect photometric detection

被引：0

作者：

J. Dahlén

J. Hagberg

St. Karlsson

机构：

[1] Department of Water and Environmental Studies,

[2] Linköping University,undefined

[3] 581 83 Linköping,undefined

[4] Sweden,undefined

[5] Man-Technology-Environment Research Center,undefined

[6] Örebro University,undefined

[7] 701 82 Örebro,undefined

[8] Sweden,undefined

来源：

Fresenius' Journal of Analytical Chemistry | 2000年 / 366卷

关键词：

Molecular Weight; Electrophoresis; Organic Acid; Carboxylic Acid; Good Linearity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A capillary zone electrophoretic method for the analysis of low molecular weight carboxylic acids in water was developed. The application uses the chromophore trimellitic acid that allows for indirect photometric detection at 254 nm. Selectivity control by the addition of Ca2+ to the carrier electrolyte made possible a baseline resolved separation of 14 carboxylic acids. Good linearity and repeatability were obtained for both electrokinetic and hydrostatic injection modes. The usefulness of the method is demonstrated by the analysis of a snow sample.

引用

页码：488 / 493

页数：5