Selective liquid membrane transport of lead(II) by an acyclic polyether dicarboxylic acid ionophore

被引：40

作者：

Hiratani, K

Takahashi, T

Sugihara, H

Kasuga, K

Fujiwara, K

Hayashita, T

Bartsch, RA

机构：

[1] SAGA UNIV,FAC SCI & ENGN,DEPT CHEM,SAGA 840,JAPAN

[2] TEXAS TECH UNIV,DEPT CHEM & BIOCHEM,LUBBOCK,TX 79409

来源：

ANALYTICAL CHEMISTRY | 1997年 / 69卷 / 15期

关键词：

D O I：

10.1021/ac9701593

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The effects of the chain structure and substitutents in six acyclic polyether dicarboxylic acids and one acyclic polyether carboxylic acid upon the efficiency and selectivity of pH-driven Pb2+ transport in a bulk chloroform membrane system have been assessed. Among the carriers, 1,2-bis[2-(o-carboxyphenoxy)ethoxy]-4-tert-butylbenzene (1) is found to exhibit high selectivity for transport of pb(2+) compared with alkali metal cations and a variety of other divalent metal ion species, Ionophore 1 also extracts Pb2+ from aqueous solution into chloroform with the loss of two protons, A 1:1 complex of Pb2+ with di-ionized 1 was isolated.

引用

页码：3002 / 3007

页数：6

共 14 条

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Araki T., 1990, LIQUID MEMBRANES CHE

[2]

Bartsch R.A., 1996, ACS S SERIES, V642

[3] CONTROL OF METAL-ION SELECTIVITY IN LIGANDS CONTAINING NEUTRAL OXYGEN AND PYRIDYL GROUPS [J].