Classical retention mechanism in ion exchange chromatography. Theory and experiment

被引：10

作者：

Foti, G ^{[1
]}

Revesz, G ^{[1
]}

Hajos, P ^{[1
]}

Pellaton, G ^{[1
]}

Kovats, ES ^{[1
]}

机构：

[1] UNIV VESZPREM,DEPT ANALYT CHEM,H-8201 VESZPREM,HUNGARY

来源：

ANALYTICAL CHEMISTRY | 1996年 / 68卷 / 15期

关键词：

D O I：

10.1021/ac9600159

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The classical model for ion exchange chromatography is characterized by firmly adsorbed driving ions at the surface of the stationary phase in an amount required by electroneutrality and stoichiometric ion exchange between the bulk of the eluent electrolyte and this immobilized Stern layer. Retention equations have been derived for system peaks, labeled eluent ions, and analytes in a system containing only strong electrolytes by strictly respecting this model. It is shown that the classical model described dependence of retention data on concentration and composition of the binary eluent with excellent precision, but the resulting system parameters were not self-consistent, Inconsistency of the results might be due to contributions from another retention mechanism.

引用

页码：2580 / 2589

页数：10

共 18 条

[1] NITROGEN ADSORPTION-ISOTHERMS ON ORGANIC AND IONIC MODEL SURFACES [J].