SEPARATION OF NON UV-ABSORBING CATIONS BY CAPILLARY ELECTROPHORESIS

被引：44

作者：

BECK, W ^{[1
]}

ENGELHARDT, H ^{[1
]}

机构：

[1] UNIV SAARLAND,W-6600 SAARBRUCKEN,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 346卷 / 6-9期

关键词：

D O I：

10.1007/BF00321257

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new buffer system for the separation of cations with capillary electrophoresis using indirect UV-detection is described. p-Aminopyridine can be used in the wide pH-range between 3 and 10. High-speed separations of positively charged non-UV absorbing ions are possible. Separation of ions with similar mobilities can be achieved by the addition of complexation reagents. The separation of potassium and ammonium is possible either with the addition of crown ether or at high pH-values. Transition metals can be separated by adding 2-hydroxybutyric acid to the buffer.

引用

页码：618 / 621

页数：4