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
收藏
页码：349 / 356
页数：8
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