ROLE OF MEMBRANE MEDIA IN POTENTIOMETRIC SELECTIVITY OF ANION CARRIER-BASED ION-SELECTIVE ELECTRODES

被引：43

作者：

JYO, A

MINAKAMI, R

KANDA, Y

EGAWA, H

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Kumamoto University, Kumamoto, 860

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1993年 / 13卷 / 1-3期

关键词：

D O I：

10.1016/0925-4005(93)85361-D

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Effect of membrane media on potentiometric selectivity of two metalloporphyrin anion carriers, manganese(III) and molybdenum(V) complexes of tetraphenylporphyrin, is studied by using liquid membrane cell assemblies. Nitrobenzene, 1,2-dichloroethane, and chloroform are used as liquid membrane media. Anion selectivities of the two metalloporphyrins in nitrobenzene and 1,2-dichloroethane liquid membranes are somewhat different from those of corresponding classical anion exchanger-based liquid membranes, but both solvents cannot induce their anti-Hofmeister behavior. On the other hand, both metalloporphryins show clear anti-Hofmeister anion selectivity sequences in the less polar chloroform membranes, indicating important roles of membrane media in selective recognition of some anions by the metalloporphyrin anion carriers.

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页码：200 / 204

页数：5

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