Biosensor, and a method and a device for quantifying a substrate

Details Biosensor, and a method and a device for quantifying a substrate Biosensor, and a method and a device for quantifying a substrate

1995-04-20

1996-12-10

Bell, Bruce F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204415, 204412, 204406, 435817, 4352879, 205778, 2057775, G01N 2726

Patent

active

055826970

ABSTRACT:
The biosensor of this invention can quantify a substrate in a sample liquid by electrochemically measuring the amount of an electron acceptor that has been reduced by electrons generated in a reaction between the substrate and an oxidoreductase. The biosensor has an electrically insulating substrate and an electrode system formed on the substrate including a working electrode, a counter electrode and a third electrode used for detecting a liquid junction. The third electrode can be used merely for detecting a liquid junction, or can be used as both a reference electrode and a liquid junction detecting electrode.

REFERENCES:
patent: 4172770 (1979-10-01), Semersky et al.
patent: 5192415 (1993-03-01), Yoshioka et al.
patent: 5264103 (1993-11-01), Yoshioka et al.

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