Fecha de publicación: 10/10/2022 Fuente: Wipo "olive oil" The invention relates to an electrochemical system and method meant for the detection of adulteration of extra virgin olive oil, which electrochemical system comprises a sensor (1) having three electrodes (2, 3, 4) made by the method of 3D printing, a potentiostat (6) and a device (7) containing software with which circular voltammetry can be performed.