POTENTIOMETRIC FLOW-ANALYSIS DEVICE USING MEMBRANE-COATED CARBON ROD ION-SELECTIVE ELECTRODE DETECTORS

被引：11
作者：
WANG, E
KAMATA, S
机构：
[1] Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Kagoshima University, Kagoshima, 890, 1-21-40, Korimoto
来源：
ANALYTICA CHIMICA ACTA | 1992年 / 261卷 / 1-2期
关键词：
FLOW SYSTEM; POTENTIOMETRY; CHLORIDE; COPPER; ION-SELECTIVE ELECTRODES; SEA WATER; THIOCYANATE; URINE;
D O I：
10.1016/0003-2670(92)80219-W
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A flow-through analysis system that utilizes a membrane-coated carbon rod ion-selective electrode was investigated. Electrodes for Cu2+ based on a thiuram disulphide neutral carrier and for ClO4-, SCN-, NO3- and Cl- based on a bis(diphenylphosphino)propane-copper complex as ion exchanger exhibited satisfactory performance in a continuous-flow system. The response of the anion electrodes in a flow-injection system was near Nernstian in the concentration range 10(-2)-10(-4) or 10(-5) M. Highly reproducible measurements were obtained with sample volumes of 30-100-mu-l and a sample injection rate of up to 400 h-1. The chloride electrode was suitable for the FIA determination of Cl- in sea water and urine.
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页码：399 / 404
页数：6
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