G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/417 (2006.01) B01D 71/30 (2006.01) G01N 27/40 (2006.01) G01N 27/407 (2006.01)
Patent
CA 2113733
A planar, solid-state electrochemical oxygen sensor having a substrate, conductive strips deposited on the substrate, and a dielectric layer insulating portions of the conductive strips except those portions which define a working electrode and at least one second electrode. The working electrode may be defined by an open printed region of the dielectric, or by a needle-punched or laser-burned hole or opening in the dielectric which exposes a small region of one of the conductive strips. 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 ml. 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.
Berger Joseph
Boden Mark W.
Edelman Peter G.
Flaherty James E.
Foos Joseph S.
Ciba Corning Diagnostics Corp.
Corporation Bayer
Novartis Ag
Sim & Mcburney
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