Modified glassy carbon electrodes based on carbon nanostructures for ultrasensitive electrochemical determination of furazolidone

Shahrokhian, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.msec.2016.01.025
  3. Abstract:
  4. The electrochemical behavior of Furazolidone (Fu) was investigated on the surface of the glassy carbon electrode modified with different carbon nanomaterials, including carbon nanotubes (CNTs), carbon nanoparticles (CNPs), nanodiamond-graphite (NDG), graphene oxide (GO), reduced graphene oxide (RGO) and RGO-CNT hybrids (various ratios) using linear sweep voltammetry (LSV). The results of voltammetric studies exhibited a considerable increase in the cathodic peak current of Fu at the RGO modified GCE, compared to other modified electrodes and also bare GCE. The surface morphology and nature of the RGO film was thoroughly characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) techniques. The modified electrode showed two linear dynamic ranges of 0.001-2.0 μM and 2.0-10.0 μM with a detection limit of 0.3 nM for the voltammetric determination of Fu. This sensor was used successfully for Fu determination in pharmaceutical and clinical preparations
  5. Keywords:
  6. Carbon nanomaterials ; Carbon nanotubes ; Furazolidone ; Graphene oxide ; Reduced graphene oxide ; Voltammetry ; Atomic force microscopy ; Cyclic voltammetry ; Electrochemical electrodes ; Electrochemical impedance spectroscopy ; Electrodes ; Glass ; Graphene ; Nanodiamonds ; Nanostructured materials ; Nanotubes ; Scanning electron microscopy ; Yarn ; Electrochemical determination ; Graphene oxides ; Modified glassy carbon electrode ; Reduced graphene oxides ; Reduced graphene oxides (RGO) ; Voltammetric determination ; Glass membrane electrodes
  7. Source: Materials Science and Engineering C ; Volume 61 , 2016 , Pages 842-850 ; 09284931 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0928493116300297