Electrochemical micro sensor

Details Electrochemical micro sensor Electrochemical micro sensor

1988-08-10

1989-09-12

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204415, 204425, 204426, G01N 2756

Patent

active

048657174

ABSTRACT:
A micro-amperometric electrochemical sensor for detecting the presence of a pre-determined species in a fluid material is disclosed. The sensor includes a smooth substrate having a thin coating of solid electrolytic material deposited thereon. The working and counter electrodes are deposited on the surface of the solid electrolytic material and adhere thereto. Electrical leads connect the working and counter electrodes to a potential source and an apparatus for measuring the change in an electrical signal caused by the electrochemical oxidation or reduction of the species. Alternatively, the sensor may be fabricated in a sandwich structure and also may be cylindrical, spherical or other shapes.

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