JP-2022513207-A5 -

Dates

Publication Date

20221207

Application Date

20191210

Description

In addition, the leakage of KCl from the composite electrode through the diaphragm is a problem, and this becomes more pronounced when KCl efflorescence occurs on the outside of the diaphragm. This changes the KCl concentration in the KCl solution, and thus changes the electrochemical potential of the reference electrode. This change in potential leads to further errors in the measurement. Even if the mass of KCl flowing out from the composite electrode is small, it will result in erroneous measurements over a long period of time. To reduce the mass flow rate of KCl flowing out from the composite electrode, it was conventionally necessary to store the composite electrode in a liquid that moistens the diaphragm from the outside of the electrode. As contamination progresses and KCl leakage progresses, the service life of the composite electrode is limited, and within that range, the composite electrode can perform error-free measurements. The following are prior art documents related to the invention of this application (including documents cited in the international phase after the international filing date and documents cited when the application was filed in other countries as national phase entries): (Prior art document) (Patent Document) (Patent Document 1) German Patent Application Publication No. 102009055092 (Patent Document 2) U.S. Patent Application Publication No. 2005/133369 (Patent Document 3) European Patent Application Publication No. 1172648 (Patent Document 4) German Patent Application Publication No. 69526366 (Patent Document 5) International Publication No. 2006/018425 (Non-patent literature) (Non-Patent Document 1) FERREIRA N N ET AL: "Recent advances in smart hydrogels for biomedical applications: From self-assembly to functional approaches", EUROPEAN POLYMER JOURNAL, PERGAMON PRESS LTD. OXFORD, GB, Vol. 99, 6 December 2017 (2017-12-06), pages 117-133