Patent ID: 8512532

Claim:
A non-enzymatic whole blood electrode strip, which is produced by a method comprising the steps of: (a) coating a conducting film on one side of an electrically insulating substrate to form an electrode system with an isolated and disconnected anode and cathode; (b) coating an electrically insulating film on a part of the anode and cathode of the electrode system, wherein one end of the anode uncovered with the conducting film forms at least a reference electrode and the other end forms an anode connector, and one end of the cathode uncovered with the conducting film forms at least a working electrode and the other end forms a cathode connector; and an exposed part of the electrode system not covered with the insulating film forms an electrochemical reaction zone for forming a reaction layer; and (c) adding dropwise a reaction film formulation onto the electrochemical reaction zone in step (b), and drying it to form the reaction layer; wherein the formulation comprise an electron mediator, a water-soluble polymer carrier and a volatile organic solvent used as a dispersing agent, and wherein the amount of the electron mediator is from 0.05% to 6% of the reaction film formulation calculated by weight, the amount of the water-soluble polymer carrier is below 5% of the reaction film formulation calculated by weight, and the amount of the volatile organic solvent is from 10% to 80% of the reaction film formulation calculated by weight, wherein the formulation does not contain a surfactant; and wherein the non-enzymatic whole blood electrode strip is used for detecting uric acid.