ION SENSITIVE FILM FOR CARBOXYLIC ACID SENSOR, ELECTRODE FOR CARBOXYLIC ACID SENSOR, CARBOXYLIC ACID CONCENTRATION MEASURING DEVICE AND CARBOXYLIC ACID CONCENTRATION MEASURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an ion sensitive film for a carboxylic acid sensor and an electrode for the carboxylic acid sensor capable of measuring the carboxylic acid concentration with high sensitivity and high selectivity.;SOLUTION: In this electrode 9 for the carboxylic acid sensor, this ion sensitive film 3 in contact with a solution 23 to be measured is provided on a film support 1, and an electrolytic solution 5 and an internal electrode 7 in contact therewith are provided on the opposite side of the ion sensitive film 3 relative to the solution 23 to be measured. The ion sensitive film 3 is characterized by including a porphyrin complex including at least one kind of metal selected from a group comprising Zr, Hf, Ti and V as a center metal, or a derivative from the complex.;COPYRIGHT: (C)2003,JPO