Electrochemical sensor
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United States of America Patent
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Issued Date -
Sep 1, 2011
app pub date -
Aug 23, 2010
filing date -
Feb 26, 2010
priority date (Note) -
Abandoned
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Abstract
An electrochemical sensor for detecting the concentration of ions in a solution includes a substrate, a sensor unit, and a reference electrode. The sensor unit includes at least one working electrode. The working electrode has a conductive layered structure formed on the substrate, and a sensor element of a metal oxide film formed on the conductive layered structure and capable of reacting with the ions in the solution to generate a potential. The reference electrode is spaced apart from the working electrode, and includes a conductive film printed on the substrate for establishing a potential difference between the working electrode and the reference electrode when the electrochemical sensor is brought into contact with the solution.
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