▎ 摘　　要

NOVELTY - The method for preparing gold nano-particle modified flexible electrode involves fully mixing (S01) the graphene dispersion liquid and ascorbic acid to deionized water, pumping and filtering the oxidized graphene solution, drying to prepare (S02) a primarily reduced graphene oxide paper, soaking (S03) the primarily reduced graphite paper in the hydroiodic acid for mixing and reacting, cleaning and drying (S04) to obtain a secondary reduced graphene flexible electrode, and placing (S05) the secondary-reduced graphite flexible electrode in an electrolyte containing chloroauric acid, and preparing gold nano modified graphene electrode using cyclic voltammetry. USE - Method for preparing gold nano-particle modified flexible electrode for making electrochemical sensor for detecting nitrite content (all claimed), used in semiconductor, energy storage material, biological material, and sensor. ADVANTAGE - The method enables to prepare gold nano-particle modified flexible electrode, which has excellent electrochemical performance, adhesion of gold nano particles, uniform gold nano particle size of negative potential reduction, and improved yield, and is convenient to use. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating the gold nano-particle modified flexible electrode preparation process. (Drawing includes non-English language text). S01Step for mixing the graphene dispersion liquid and ascorbic acid to deionized water S02Step for preparing a primarily reduced graphene oxide paper S03Step for soaking the primarily reduced graphite paper in the hydroiodic acid for mixing and reacting S04Step for cleaning and drying to obtain a secondary reduced graphene flexible electrode S05Step for placing the secondary-reduced graphite flexible electrode in an electrolyte containing chloroauric acid, and preparing gold nano modified graphene electrode using cyclic voltammetry