Highly efficient and selective membrane transport of silver(I) ion by a cooperative carrier composed of aza-18-crown-6 and palmitic acid

被引：35

作者：

Shamsipur, M ^{[1
]}

Akhond, M ^{[1
]}

机构：

[1] SHIRAZ UNIV, DEPT CHEM, SHIRAZ, IRAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1997年 / 70卷 / 02期

关键词：

D O I：

10.1246/bcsj.70.339

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A given mixture of aza-18-crown-6 and plamitic acid was found to be an excellent cooperative carrier for the efficient transport of Ag+ ions through a bulk liquid membrane. In the presence S2O32- ion, as a suitable metal ion acceptor in the receiving phase, the amount of silver transported across the liquid membrane after 90 min was 93.6+/-1.5%. The selectivity and efficiency of silver transport from aqueous solutions containing other cations such as Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Pb2+, and Fe2+ ions were investigated. In the presence of diphosphate as a suitable masking agent in the source phase, the interfering effect of Cd2+ ion was eliminated.

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页码：339 / 343

页数：5

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