The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 1981
Filed:
Oct. 31, 1979
Jozsef Petro, Budapest, HU;
Erno Pungor, Budapest, HU;
Klara Toth, Budapest, HU;
Ferenc Rakias, Budapest, HU;
Magyar Tudomanyos Akademia, Budapest, HU;
Abstract
The invention relates to a new process for the preparation of highly accurate and stable silver-silver salt reference electrode. According to the invention a homogeneous mixture is formed from silver powder and a powdered silver salt, then a paste is prepared by blending the mixture with a liquid binding agent capable of adhering to metals, applying the paste onto the surface of an electrode base, allowing the paste to harden and then subjecting the electrode to a heat treatment between 100.degree. C. and 250.degree. C. In this latter step a porous silver-silver salt layer is formed on the metal base, which renders the electrode highly accurate and stable. Ion selective measuring electrodes are prepared essentially in the same manner with the difference that silver is replaced partly or entirely by graphit.