ELECTROLYTIC CONCENTRATION MEASURING DEVICE AND MEASURING METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an electrolytic concentration measuring device for measuring resistance of an ion-selective electrode in high accuracy.SOLUTION: An electrolytic concentration measuring device includes: a plurality of ion-selective electrodes and one reference electrode; a sample induction part for introducing a sample solution to the plurality of ion-selective electrodes and the reference electrode; an electric potential measuring part for measuring voltage between the plurality of ion-selective electrodes and the reference electrode; and a resistance measurement part for measuring direct current resistance of the plurality of ion-selective electrodes.