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Electrochemical electrode test strip and a process for preparation thereof

  • US 20020003087A1
  • Filed: 05/31/2001
  • Published: 01/10/2002
  • Est. Priority Date: 06/01/2000
  • Status: Active Grant
First Claim
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1. An electrode test strip for detecting an analyte concentration, comprising:

  • an insulating base plate;

    an electrode system on the first surface of the insulating base plate, the electrode system comprises at least a working electrode and a reference electrode, wherein the working electrode and the reference electrode is isolated;

    a spacer partially covering the first surface of the insulating base plate and the electrode system to expose first part of the electrode system, and a channel trench cross the spacer is formed therein to expose second part of the electrode system;

    a reactive film in the channel trench, the reactive film contains at least one active species that can have a specific redox reaction with the analyte; and

    a cover with a first opening on the spacer, wherein the first opening exposes the channel trench, and two second openings formed at the two ends of the channel trench.

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