STUDIES ON THE RETENTION BEHAVIOR OF METAL-EDTA COMPLEXES IN CATION CHROMATOGRAPHY

被引：11

作者：

SARZANINI, C ^{[1
]}

SACCHERO, G ^{[1
]}

MENTASTI, E ^{[1
]}

HAJOS, P ^{[1
]}

机构：

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

来源：

JOURNAL OF CHROMATOGRAPHY A | 1995年 / 706卷 / 1-2期

关键词：

D O I：

10.1016/0021-9673(95)00194-R

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Separation of metal-EDTA complexes (e.g. with Cu2+, Ni2+ and Pb2+) has been carried out with a cation-exchange polymer based column. Two mobile-phase systems, containing either nitric or perchloric acid, have been studied and the metal complexes with EDTA have been detected by UV spectrophotometry. A retention model has been developed. It takes into account both ion-exchange and adsorption phenomena of all positive, neutral and, as an attempt, negative metal-EDTA species. The ion-exchange behaviour of the metal-EDTA complexes and the adsorption effects due to neutral species have been applied for an on-line preconcentration procedure.

引用

页码：141 / 147

页数：7

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