AC-IMPEDANCE PROPERTIES OF ETH1001-BASED CALCIUM-ION SELECTIVE MEMBRANES

被引：13

作者：

COVINGTON, AK

ZHOU, DM

机构：

[1] Department of Chemistry, University of Newcastle upon Tyne, Newcastle upon Tyne

来源：

ELECTROCHIMICA ACTA | 1992年 / 37卷 / 15期

关键词：

CALCIUM ION-SELECTIVE ELECTRODE; POLYVINYL CHLORIDE; POLYMER MEMBRANE; IMPEDANCE SPECTRA; IONOPHORE;

D O I：

10.1016/0013-4686(92)85194-P

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The properties of calcium ion-selective, polyvinyl chloride membranes have been determined from ac impedance spectra. The bulk membrane resistance does not stabilize before 2 days of contact with aqueous solutions, suggesting that the usually adopted overnight conditioning period is too short. The effect of using different plasticisers and ligand/calcium ion ratios in the membrane permits optimization of membrane composition for the chosen ionophore ETH1001.

引用

页码：2691 / 2694

页数：4

共 11 条

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