Ferrocene-Graphene nanocomposite modified glassy carbon electrode for amaranth detection

摘要

A non-covalent nanohybrid of Ferrocene(Fc)with grapheme(Gr)via π-π interaction was proposed for amaranth detection.The synthesized Fc-Gr composite was modified on glassy carbon electrode(GCE)and characterized by cyclic voltammetry(CV)as well as differential pulse voltammetry(DPV).Cyclic voltammogram and differential pulse voltammogram demonstrated successful fabrication of Fc-Gr composite-modified GCE for amaranth detection.DPV was used to obtain a linear range of amaranth detection.The linear range of amaranth detection with a modified sensor was expressed from 10 to 250 μM of amaranth.The limit of detection was obtained at 155 nM of amaranth.Based on these results,the developed sensor provides a good alternative for the detennination of amaranth.Moreover,the developed sensor can hopefully be utilized and adapted for detection of other substances.