SELECTIVE-MEMBRANE TRANSPORT OF PB2+ ION BY A COOPERATIVE CARRIER COMPOSED OF 18-CROWN-6, TETRABUTYLAMMONIUM IODIDE AND PALMITIC ACID

被引：32

作者：

PARHAM, HS ^{[1
]}

SHAMSIPUR, M ^{[1
]}

机构：

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

来源：

JOURNAL OF MEMBRANE SCIENCE | 1994年 / 95卷 / 01期

关键词：

LIQUID MEMBRANES; LEAD TRANSPORT; 18-CROWN-6; TETRABUTYLAMMONIUM IODIDE; PALMITIC ACID; PYROPHOSPHATE;

D O I：

10.1016/0376-7388(94)85025-9

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A mixture of 18-crown-6, tetrabutylammonium iodide and palmitic acid was found to be an excellent cooperative carrier for uphill transport of Pb2+ ions through a chloroform liquid membrane. In the presence of P2O7(4)- ions as a suitable metal ion acceptor in the receiving phase, it can selectively and efficiently transport lead ions from aqueous solutions containing other cations such as Cd2+, Hg2+, Cu2+, co2+, Ni2+, Zn2+, Fe2+, Ba2+, Sr2+, Ag+, K+ and Na+. Percentages of Pb2+ transport across the liquid membrane after 45 min is 97.0 +/- 1.4.

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页码：21 / 27

页数：7

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