▎ 摘　　要

NOVELTY - Detecting blood glucose with persimmon tannin at graphene/platinum-palladium non enzyme sensor includes treating graphene, weighing, adding distilled water, using ultrasound, centrifuging, removing supernatant, standing, mixing, washing, drying, dispersing, pretreating, polishing, placing electrodes in distilled water, anhydrous ethanol and distilled water, placing in sulfuric acid solution for 10 laps electrochemical cyclic voltammetry scanning, rinsing, using three electrode system, using electrochemical workstations, using current-time method to measure response time and calculating. USE - Method of detecting blood glucose with persimmon tannin at graphene/platinum-palladium non enzyme sensor (claimed). ADVANTAGE - The method has high sensitivity and fast detection of glucose without enzyme electrochemical detection method. DETAILED DESCRIPTION - Detecting blood glucose with persimmon tannin at graphene/platinum-palladium non enzyme sensor comprises treating graphene, weighing 0.1 mg/mL graphene oxide, adding distilled water, using ultrasound, centrifuging, removing supernatant to obtain 0.1 mg/mL graphene oxide, adding ascorbic acid to reduce graphene, using ultrasound, standing to obtain 0.1 mg/mL reduced graphene solution, taking 10 mL 0.1 mg/mL reduced graphene solution, adding 2 mL of 0.01 g/mL HPtCl4 and 2 mL 0.05 g/mL palladium nitrate solution, mixing, adding 10 mg ascorbic acid, centrifuging to obtain black precipitate, washing with water, drying to obtain graphene/platinum-palladium composite nanomaterials, adding 20 mg persimmon tannin in 10 mL distilled water, dispersing to obtain 1 mg/mL suspension of persimmon tannin at graphene/platinum-palladium composite nanomaterials, pretreating gold electrode, polishing, washing with distilled water twice, placing electrodes in distilled water, anhydrous ethanol and distilled water for 5 minutes, drying, placing in 0.5 mol/L sulfuric acid solution for 10 laps electrochemical cyclic voltammetry scanning, rinsing with distilled water, removing suspension of persimmon tannin at graphene/platinum-palladium composite nanomaterials, pretreating, drying, dropping repeatedly for 3 times to obtain gold electrode modified by persimmon tannin at graphene/platinum-palladium composite nanomaterial, using three electrode system to detect glucose, using electrochemical workstations, using current-time method to measure response time of glucose and calculating by the current-time curve to measure concentration of glucose in blood. A platinum electrode is auxiliary electrode. A saturated calomel electrode is reference electrode. The modified gold electrode is working electrode. A potassium chloride is electrolyte solution.