▎ 摘　　要

NOVELTY - An oxidative stability of oil and fats electrochemical evaluation method involves preparing graphene-modified electrode by electroreduction of graphene oxide suspension and diluting to-be-evaluated oil with supporting electrolyte solution. The diluted product is added to electrolytic cell followed by utilizing three electrode system, selecting appropriate working potential and obtaining peak current-time curve as double tangent by double-tangent method. USE - Method for electrochemically evaluating oxidative stability of oil and fats. ADVANTAGE - The method enables electrochemically evaluating oxidative stability of oil and fats with high sensitivity and high accuracy in a simple manner. DETAILED DESCRIPTION - An oxidative stability of oil and fats electrochemical evaluation method involves preparing graphene-modified electrode by electroreduction of graphene oxide suspension and diluting to-be-evaluated oil with supporting electrolyte solution. The diluted product is added to electrolytic cell followed by utilizing three electrode system comprising graphene modified electrode as working electrode, platinum sheet electrode as counter electrode and calomel electrode as reference electrode, selecting appropriate working potential and obtaining peak current-time curve as double tangent by double-tangent method, where change of oxidation peak current in process of oil oxidation is measured and recorded by chronoamperometry and time corresponding to point of intersection is oxidative stabilization time of fat.