Electrochemical sensor

Details Electrochemical sensor Electrochemical sensor

G - Physics

01

N

G01N 27/327 (2006.01) C12M 1/40 (2006.01) C12Q 1/00 (2006.01) G01N 27/26 (2006.01)

Patent

CA 2159553

An electrode strip for use in an electrochemical sensor for measuring a compound in a sample is provided, including an electrode support, a reference or counter electrode disposed on the support, a working electrode spaced from the reference or counter electrode on the support, a covering layer defining an enclosed space over the reference and working electrodes and having an aperture for receiving a sample into the enclosed space, and a plurality of mesh layers interposed in the enclosed space between the covering layer and the support, the covering layer having a sample application aperture spaced from said electrodes and said reference electrode spaced from said working electrode at a position remote from and on the opposite side of said working electrode from said aperture. The working electrode includes an enzyme capable of catalyzing a reaction involving a substrate for the enzyme or a substrate catalytically reactive with an enzyme and a mediator capable of transferring electrons transferred between the enzyme- catalyzed reaction and the working electrode to create a current representative of the activity of the enzyme and representative of the compound.

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