Apparatus for maintaining the activity of an enzyme electrode

Details Apparatus for maintaining the activity of an enzyme electrode Apparatus for maintaining the activity of an enzyme electrode

1991-06-10

1994-02-22

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

20415312, 20415317, 204403, 204415, G01N 27327, G01N 2738

Patent

active

052883876

ABSTRACT:
A concentration measuring apparatus includes an enzyme electrode which accelerates an oxidation reaction or a reduction reaction of a test substance in a liquid and outputs an electrical signal corresponding to a quantity of the test substance therefrom due to the reaction. The enzyme electrode is supplied with a reviving voltage for removing interfering substances on the enzyme electrode not only prior to concentration measuring but also according to a predetermined time interval. The reviving voltage has a polarity which is the reverse of the voltage used for concentration measurement.

REFERENCES:
patent: 3616412 (1971-10-01), Gnage
patent: 4057478 (1977-11-01), Bruckenstein et al.
patent: 4477314 (1984-10-01), Richter et al.
patent: 4897162 (1990-01-01), Lewandowski et al.
patent: 4950378 (1990-08-01), Nagata

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