Electrochemical sensors

Details Electrochemical sensors Electrochemical sensors

1994-03-11

1995-03-28

Gorgos, Kathryn

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204403, 204409, 204421, 204412, 204426, G01N 2526

Patent

active

054013763

ABSTRACT:
An electrochemical sensor having a substrate, conductive strips deposited on the substrate, and a layer insulating portions of the conductive strips except those portions which define a working electrode and at least one second electrode. A solid electrolyte contacting the electrodes is covered by a semipermeable membrane which may comprise an acrylonitrile butadiene copolymer or an acrylate-based copolymer. A sample chamber is defined by the membrane, a cover member, and a gasket therebetween, and has a volume of from about 1 to about 2 .mu.L. The gasket is formulated from the highly cross-linked polymerization product of epichlorohydrin. All sensor components are selected such that a sensor operable for at least 2 days under normal conditions is produced.

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