Evaluation of perchlorate tolerant photo-cured calcium selective electrodes for use in flow injection potentiometry

被引：12

作者：

DiBenedetto, LT ^{[1
]}

Dimitrakopoulos, T ^{[1
]}

Farrell, JR ^{[1
]}

Iles, PJ ^{[1
]}

机构：

[1] ROYAL MELBOURNE INST TECHNOL,DEPT APPL CHEM,BUNDOORA,VIC 3038,AUSTRALIA

来源：

TALANTA | 1997年 / 44卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

calcium selective electrodes; flow injection potentiometry; perchlorate tolerance; photo-cured membranes;

D O I：

10.1016/S0039-9140(96)02057-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A photo-cured membrane selective to calcium, based on the calcium bis [4-(1',1',3',3'-tetramethylbutyl)phenyl]phosphate ionophore and incorporating the lipophilic additive, potassium tetraki(4-chlorophenyl)borate: that can tolerate up to 200 nM perchlorate ionic background in the flow injection potentiometry mode has been previously reported (T. Dimitrakopoulos, J.R. Farrell and P.J. Ives, Electroanalysis, 8 (1996) 391). Improvements in the electrode slope and sensitivity of the previously described photo-cured calcium membrane-based electrode were achieved when anhydrous calcium chloride salt was dissolved into the pre-cured membrane composition and then photo-cured, Similar to the previously reported photo-cured calcium ion-selective electrode (ISE), the improved photo-cured calcium ISE can measure calcium in a high perchlorate background in the flow injection potentiometric mode. (C) 1997 Elsevier Science B.V.

引用

页码：349 / 356

页数：8

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