Electrochemical potential automatically correcting device using the reference electrode as a reference electrode containing the active substance spectroscopy in the electrolyte solution

摘要

PROBLEM TO BE SOLVED: To provide a reference electrode that contains spectral active material in electrolyte solution and maintains the measurement accuracy of the reference electrode used for electrochemical measurement for a long time, and also to provide an electrochemical potential automatic correcting device using the reference electrode.;SOLUTION: This reference electrode includes: an electrode external object that has an electrolyte separating film formed at one end and is filled with electrode electrolyte solution containing spectral active material inside; an internal electrode formed so as to be install in the electrode external object and be dipped in the electrode electrolyte solution; and an absorbance measurement probe that is formed so as to be installed in the electrode external object and be dipped in the electrode electrolyte solution, outputs analysis light to the electrode electrolyte solution, and collects reflected light of the analysis light. The spectral active material is mixed and dissolved in electrolyte solution, and the concentration of the electrode reaction material of the electrolyte like chlorine ions is calculated from the absorbance of the electrolyte solution. Thus, the potential variation of the reference electrode is corrected appropriately even if the internal electrolyte solution is exposed to a test environment for a long time to vary the concentration thereof, and the electrode stability is improved by maintaining the function of the reference electrode for a long time.;COPYRIGHT: (C)2010,JPO&INPIT