Polarographic-amperometric three-electrode sensor

Details Polarographic-amperometric three-electrode sensor Polarographic-amperometric three-electrode sensor

1989-07-31

1991-03-19

Kaplan, G. L.

Surgery

Truss

Pad

204403, 204412, G01N 2731

Patent

active

050001809

ABSTRACT:
For a potentiostatically operable, polarographic-amperometric sensor, in particular for biomedical use, wherein a working electrode (5) and a reference electrode (4) are covered by an electrolyte layer (9) which is separated from the medium to be measured by a semipermeable membrane (8), the invention proposes to provide the counter electrode (6) in the form of an external electrode which--for example--can be an outer metal coating surrounding the sensor chip (2) in a three electrode system fabricated as micro-sensor with the integrated technique, and which can be made--for example--of a stainless steel material or of a conductive plastics material.

REFERENCES:
patent: 4492622 (1985-01-01), Kuypers
patent: 4538617 (1985-09-01), Jensen
patent: 4624261 (1986-11-01), Holscher
patent: 4681115 (1987-07-01), Holscher
patent: 4685465 (1987-08-01), Kiltgaard et al.
"Polarographic Oxygen Sensor", CRC Press, Inc. by I. Fatt, pp. 1-7.
Fabrication of Voltammetric Sensors With Planar Techniques, Conference paper "International Conference on Solid-State Sensors and Atuators," Transducers '85, IEEE Transactions, pp. 344-345.

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