An electrochemical sensor based on reduced graphene oxide decorated with polypyrrole nanofibers and zinc oxide–copper oxide p–n junction heterostructures for the simultaneous voltammetric determination of ascorbic acid, dopamine, paracetamol, and tryptophan

Abstract

A three-dimensional porous nanocomposite was fabricated and used for the simultaneous voltammetric determination of ascorbic acid, dopamine, paracetamol, and tryptophan.