A new graphene nanocomposite modified electrode as efficient voltammetric sensor for determination of ERIOCITRIN (cas 13463-28-0)

Add time:08/08/2019    Source:sciencedirect.com

A new graphene nanocomposite, CeO2-poly(diallyldimethylammonium chloride)-graphene (CeO2-PDDA-GR), was prepared by an easy and low-cost hydrothermal method. The images of transmission electron microscopy (TEM) showed that well-shaped CeO2 nanoparticles distributed more uniformly on the GR sheets. Based on the CeO2-PDDA-GR composites modified glassy carbon electrode, the electrochemical properties of eriocitrin were investigated in detail and a sensitive determination method was established synchronously. Differential pulse voltammetry (DPV) measurement revealed that the oxidation peak current increased linearly with eriocitrin concentrations in range of 1.0 × 10− 8 mol L− 1–1.0 × 10− 6 mol L− 1 with detection limit of 7.0 × 10− 10 mol L− 1 (S/N = 3). Moreover, the proposed method was used in determination of eriocitrin in lemon sample with accurate results.

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