SEPARATION AND ENRICHMENT OF IRON (AS FE3+) AND 11 METAL-IONS IN NATURAL-WATERS USING A LIQUID MEMBRANE

被引：11

作者：

WANG, ZX ^{[1
]}

LI, JZ ^{[1
]}

VANLOON, JC ^{[1
]}

BAREFOOT, RR ^{[1
]}

机构：

[1] UNIV TORONTO,DEPT GEOL,TORONTO M5S 3B1,ONTARIO,CANADA

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 252卷 / 1-2期

关键词：

ION EXCHANGE; ATOMIC ABSORPTION SPECTROMETRY; IRON; LIQUID MEMBRANE; WATERS;

D O I：

10.1016/0003-2670(91)87216-T

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A liquid ion-exchange membrane was developed for the separation and quantitative recovery of iron, as Fe3+, and other cations from natural waters under controlled pH conditions. The influence of the pH of the aqueous sample on the extraction of eleven cations is illustrated. Quantitative extractions of Fe3+, Co2+ and Ca2+ at concentrations of 0.1-1.0-mu-g l-1 from aqueous solutions are demonstrated. The average recovery of Fe3+ under optimized conditions is 99.5% with a relative standard deviation of 1.7% (n = 8). Ion concentrations are measured by atomic absorption spectrometry.

引用

页码：205 / 210

页数：6