Highly selective and efficient membrane transport of silver as AgBr2- ion using K+-decyl-18-crown-6 as carrier

被引：8

作者：

Zolgharnein, J ^{[1
]}

Hosseini, S ^{[1
]}

Azimi, G ^{[1
]}

Sangi, MR ^{[1
]}

机构：

[1] Arak Univ, Dept Chem, Arak, Iran

来源：

ANALYTICAL SCIENCES | 2003年 / 19卷 / 06期

关键词：

D O I：

10.2116/analsci.19.871

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Potassium-decyl-18-crown-6 was used as a highly selective and efficient carrier for uphill transport of silver as AgBr2-complex ion through a chloroform bulk liquid membrane. When thiosulfate anion was used as a metal ion acceptor in the receiving phase the amounts of silver transported across the liquid membrane after 120 and 180 min were 87.0 +/- 1.8% and 96.0 +/- 1.9%. respectively. The selectivity and efficiency of silver transport from aqueous solution containing Cu2+, Zn2+. Ni2+. Cd2+. Pb2+ and Fe3+ ions were investigated. In the presence of EDTA at pH = 4 as suitable masking agent in the source phase, the interfering effects of Pb2+ and Fe3+ ions were diminished drastically.

引用

页码：871 / 875

页数：5

共 34 条

[1] Specific uphill transport of Cd2+ ion by a cooperative carrier composed of aza-18-crown-6 and palmitic acid [J].