PRECONCENTRATION OF METAL-IONS WITH ANION-EXCHANGE RESIN

被引：3

作者：

JEN, JF

FU, JT

机构：

[1] Department of Chemistry, National Chung-Hsing University, Taichung

来源：

JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 1993年 / 40卷 / 03期

关键词：

PRECONCENTRATION; ANION-EXCHANGE RESIN; METAL ION; CHELATION; ETHYLENEDIAMINETETRAACETIC ACID;

D O I：

10.1002/jccs.199300037

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A method to preconcentrate metal ions employed an anion-exchange resin was studied. Metal ions were first chelated with ethylenediaminetetraacetic acid (EDTA), then trapped on an enrichment column packed with anion-exchange resin. The major interfering ions, e.g. calcium and magnesium were excluded from enrichment by appropriate adjustment of pH. Desorption of the trapped metals was effected by elution with HCl (0.1 M). Recoveries of Cu2+, Ni2+, Co+, Pb2+, Zn+ reached 99%. By comparison with preconcentration methods using cation-exchange resin, this method has the advantages of selectivity, quantitative recovery, small cost of operation, and simple procedure.

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页码：245 / 250

页数：6

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