MEASUREMENT OF STABILITY-CONSTANTS FOR COMPLEXES OF DIVALENT-CATIONS WITH TARTARIC ACID BY ION CHROMATOGRAPHY

被引：29

作者：

LIN, FHJ

HORVATH, C

机构：

[1] YALE UNIV, DEPT CHEM ENGN, NEW HAVEN, CT 06520 USA

[2] NATL CHENG KUNG UNIV, DEPT CHEM ENGN, TAINAN 70101, TAIWAN

来源：

JOURNAL OF CHROMATOGRAPHY | 1992年 / 589卷 / 1-2期

关键词：

D O I：

10.1016/0021-9673(92)80021-L

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Single-column ion chromatography was used with ethylenediammonium tartrate in the eluent for the rapid separation of divalent metal ions and for the measurement of the complexation constants of divalent metal ions with tartrate. A theoretical framework was developed for the interpretation of the effect of pH, tartaric acid and ethylenediamine concentrations on the retention factors. Equilibrium constants for the ion-exchange process were evaluated and the concomitant enthalpy and entropy changes calculated.

引用

页码：185 / 195

页数：11