A study of the mechanisms involved in the separation of metal ions with a mixed-bed stationary phase

被引：7

作者：

Bruzzoniti, MC ^{[1
]}

Cardellicchio, N

Cavalli, S

Sarzanini, C

机构：

[1] Univ Turin, Dept Analyt Chem, I-10124 Turin, Italy

[2] CNR, Ist Sperimentale Talassograf, Taranto, Italy

[3] Lab Appl Dionex Srl, Pieve Emanuele, MI, Italy

来源：

CHROMATOGRAPHIA | 2002年 / 55卷 / 3-4期

关键词：

column liquid chromatography; ion chromatography; mixed-bed stationary phases; metal ions; separation mechanisms;

D O I：

10.1007/BF02492147

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The optimization of chromatographic methods for the determination of metal species require an understanding of the mechanisms involved. In this work, the separation of Cd, Co, Cu, Fe(II/ III), Mn, Pb and Zn using a mixed bed column (IonPac CS5A) and a cation-exchange column (IonPac CS2) is studied as a function of mobile phase composition. The type and concentration of complexing agent and of ionic strength modificators were evaluated. The charge of analytes; were calculated using the classical ion exchange approach to highlight the effect of eluent composition on retention. The comparative study enabled us to identify an optimal eluent composition for the separation of the nine metal species.

引用

页码：231 / 234

页数：4

共 15 条

[1]

Atkins P. W., 1999, INORGANIC CHEM

[2] STRUCTURAL INVESTIGATIONS OF METAL-NITRATE COMPLEXES .7. CRYSTAL AND MOLECULAR-STRUCTURE OF AQUODINITRATOBIS(QUINOLINE)CADMIUM(II) [J].