
Keywords: GCE، الکترود کربن شیشه ای; Electrografting of melamine; In situ generated diazonium cations; Electrochemically reduced graphene oxide; Self-assembly; MethylxanthinesGO, graphene oxide; GCE, glassy carbon electrode; ITO, indium tin oxide; XN, xanthine; TP, theophylline; CAF, caffein