Highly sensitive and selective amperometric sensor for iodate based on 9,10-phenanthrenequinone derived graphene

摘要: We reported on a new amperometric sensor for the sensitive and selective determination of iodate in table salt. The was constructed by integration novel nanocomposite which made from 9,10-phenanthrenequinone(PQ) graphene(GP) with glassy carbon electrode(GCE). synthesized graphene were well characterized X-ray diffraction(XRD), transmission electron microscopy(TEM), Fourier transform infrared(FTIR) spectroscopy Raman spectroscopy. fully studied electrochemical behavior kinetic characteristics PQ/GP at GCE. electrode shows good catalytic activity towards reduction iodate, makes itself iodate. displays high sensitivity(1.04 μA·μmol·L−1), low detection limit(1.0×10−8 mol/L), rapid response(less than 2 s), broad linear range(from 5.0×10−8 mol/L to 6.0×10−3 mol/L). In addition, is interference free. practical application proposed tested