A sensitive electrochemical detection of metronidazole in synthetic serum and urine samples using low-cost screen-printed electrodes modified with reduced graphene oxide and C60 - Vásques, Elsa María Materón; Wong, Ademar; Freitas, Tayane Aguiar; Faria, Ronaldo Censi; Oliveira Junior, Osvaldo Novais de (Journal of Pharmaceutical Analysis, 2021)