Facile fabrication of a non-enzymatic nanocomposite of heteropolyacids and CeO2@Pt alloy nanoparticles doped reduced graphene oxide and its application towards the simultaneous determination of xanthine and uric acid

摘要: Abstract A non-enzymatic nanocomposite of 12-heteropolyacids and CeO2@Pt alloy nanoparticles decorated by reduced graphene oxide (RGO), was successfully developed a facile eco-friendly route for simultaneous determination xanthine (XA) uric acid (UA). The surface morphology structure the were investigated scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), photoelectron (XPS) fourier transform infrared (FT-IR), respectively. And then, electrochemical properties further examined differential pulse voltammetry (DPV), cyclic (CV) impedance (EIS). as-prepared exhibited excellent sensing performance towards UA XA simultaneously with widely linear range from 4.43 × 10−7 M to 4.52 × 10−4 M 1.25 × 10−7 M 5.73 × 10−4 M, respectively, along relatively low detection limit 5.13 × 10−8 M 1.34 × 10−8 M, mainly because synergistic effect active components. Meanwhile, also revealed superb anti-interference property, as well good stability reproducibility. What's more, applied in detecting real samples satisfactory results, demonstrating that PMo6W6/RGO-CeO2@Pt would be potential candidate sensor practical acid.