Specific uphill transport of zinc as Zn(SCN)4(2-) ion using Na+-dicyclohexyl-18-crown-6 as carrier

被引：22

作者：

Akhond, M ^{[1
]}

Shamsipur, M ^{[1
]}

机构：

[1] RAZI UNIV,DEPT CHEM,KERMANSHAH,IRAN

来源：

JOURNAL OF THE CHINESE CHEMICAL SOCIETY | 1996年 / 43卷 / 03期

关键词：

D O I：

10.1002/jccs.199600034

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Sodium-dicyclohexyl-18-crown-6 complex cation was used as carrier for the uphill transport of zinc as Zn(SCN)(4)(2-) complex anion. By using L-cysteine as a metal ion acceptor in the receiving phase at the optimized pH of 7.6, the amount of zinc transport through the liquid membrane after 90 min was 97.2 +/- 1.0%. The selectivity and efficiency of zinc transport from aqueous solutions containing equimolar mixtures of Ag+, Cd2+, Co2+, Cu2+, Fe2+, Ni2+, Pb2+, Pd2+, Sr2+, Bi3+, Cr3+ and Fe3+ ions was investigated. In the presence of NH2OH.HCl as a suitable masking agent in the source phase, the interfering effect of Cu2+ and Pb2+ ions was diminished drastically.

引用

页码：225 / 229

页数：5

共 21 条

[1] HIGHLY SELECTIVE AND EFFICIENT MEMBRANE-TRANSPORT OF COPPER AS CU(SCN)(4)(2-) ION USING K+-DICYCLOHEXYL-18-CROWN-6 AS CARRIER [J].