Oxygen stabilized enzyme electrode
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United States of America Patent
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-
Feb 15, 1983
Grant Date -
N/A
app pub date -
Mar 3, 1981
filing date -
Mar 5, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An enzyme electrode based on an oxygen electrode and an oxygen consuming enzyme is described. The oxygen demand of the electrode is satisfied through an electrolytical oxygen production by means of an anode located close to the enzyme and the sensitive surface of the oxygen electrode. The deviation from a reference value, which could be constant or be formed by the signal from an enzymatically passive oxygen electrode, of the oxygen electrode signal, is used to control the electrolysis current in order to keep the oxygen activity in the enzyme electrode constant. The electrolysis current is used as a measure of the concentration of the substrate of the enzyme.
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