Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Anion Selective Electrode for High Performance Liquid Chromatography Detector Based on Oleophilic Anion-Exchange Resin Membrane
Sadayuki KOIZUMIToshihiko IMATONobuhiko ISHIBASHI
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1987 Volume 3 Issue 4 Pages 319-325

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Abstract

A system is described for the separate determination of anions using HPLC with a potentiometric detector based on an ion selective electrode (ISE). The ISE consists of an oleophilic anion-exchange resin membrane impregnated with an organic solvent. A sodium sulfate solution containing a trace level of a primary ion for the electrode was used as an eluent. Sensitivity and selectivity of the ISE detector varies with a solvent species imbibed in the detector membrane and an ionic form of the membrane. Chromatograms for oxyacid anions (lO3-, BrO3-, ClO3- and NO3-) are shown, and relationships between chromatographic sensitivity and selectivity coefficients of the ISE detector are discussed.

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© The Japan Society for Analytical Chemistry
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