▎ 摘　　要

NOVELTY - Rapid detection of hydrogen peroxide of enzyme modified electrode comprises e.g. preparation of nitrogen-reduced graphene oxide (N-RGO): using water to dispersing the graphene oxide to obtain oxidized graphene dispersion liquid, adjusting the pH value of the oxidized graphene dispersion liquid is 8-9, adding urea in the dispersion at 100-150 degrees C, finishing reaction, purifying the product to obtain N-RGO, preparation of silver-copper oxide/N-RGO: using water to the N-RGO dispersion, N-RGO dispersion, adding N-RGO dispersion to copper sulfate to obtain N-RGO and copper sulfate mixed solution. USE - The method is useful for rapid detection of hydrogen peroxide of enzyme modified electrode (claimed). ADVANTAGE - The method: is simple; is economical; has high sensitivity and low detection limit; is environmentally-friendly. DETAILED DESCRIPTION - Rapid detection of hydrogen peroxide of enzyme modified electrode comprises (1) preparation of nitrogen-reduced graphene oxide (N-RGO): using water to dispersing the graphene oxide to obtain oxidized graphene dispersion liquid, adjusting the pH value of the oxidized graphene dispersion liquid is 8-9, adding urea in the dispersion at 100-150 degrees C, finishing reaction, purifying the product to obtain N-RGO, (2) preparation of silver-copper oxide/N-RGO: using water to the N-RGO dispersion, N-RGO dispersion, adding N-RGO dispersion to copper sulfate to obtain N-RGO and copper sulfate mixed solution, mixing and adding sodium citrate and sodium carbonate and polyvinylpyrrolidone in the solution, adding N-RGO and copper sulfate glucose solution, lower at 80-100 degrees C until the solution is brick red, cooling to the room temperature, adding silver nitrate stirring into dark grey is brick red until the solution under the room temperature, separating and purifying to obtain the silver-copper oxide/N-RGO, (3) preparing obtained the step (2) silver-copper oxide/N- RGO modified on the glassy carbon electrode to obtain enzyme chemical of the rapid detecting hydrogen peroxide modified electrode. INDEPENDENT CLAIMS are also included for: (1) preparing enzyme chemical modified electrode which is obtained by fast detecting hydrogen peroxide; (2) rapid detection of hydrogen peroxide enzyme-free electrochemical sensors; and (3) use method of rapid detection of hydrogen peroxide enzyme-free electrochemical sensor for detecting hydrogen peroxide content comprising measuring the hydrogen peroxide standard solution with different concentrations corresponding to the current response value to obtain hydrogen peroxide concentration and the current response value of the linear equation, where the linear equation is i (uA) =92.18c mu mol/l) + 5.044 (R2 = 0.9981) c is hydrogen peroxide concentration in the equation, i is a timing current method to obtain the current response value, response current value for measuring the sample solution to be tested, according to the linear equation to calculate the hydrogen peroxide concentration to obtain the content of hydrogen peroxide in the sample, preferably, specific parameters for the timing current method is the initial potential is -0.2V, the sampling interval is 0.1 s mV, the stewing time is 2 s, the scale number is 1.