Header menu link for other important links
X
A non-covalent interaction of Schiff base copper alanine complex with green synthesized reduced graphene oxide for highly selective electrochemical detection of nitrite
Subramanian Sivasanker
Published in Royal Society of Chemistry
2016
Volume: 6
   
Issue: 109
Pages: 107416 - 107425
Abstract
A novel and selective nitrite sensor based on non-covalent interaction of Schiff base copper complex [Cu(sal-ala)(phen)] with reduced graphene oxide (RGO) was developed by simple eco-friendly approach. The morphology of the prepared RGO/[Cu(sal-ala)(phen)] nanocomposite was characterized by scanning electron microscopy (SEM), ultraviolet visible spectroscopy (UV), electrochemical impedance spectroscopy (EIS), energy dispersive X-ray spectroscopy, X-ray diffraction studies and Fourier transform infrared spectroscopy (FT-IR). On the other hand, the electrochemical studies of the prepared nanocomposite was investigated by cyclic voltammetry (CV) and amperometric technique. The RGO/[Cu(sal-ala)(phen)] nanocomposite modified glassy carbon electrode (GCE) exhibit the higher electrocatalytic activity towards detection of nitrite. Moreover, the RGO/[Cu(sal-ala)(phen)] modified GCE was determined the nitrite with low detection limit (19 nM), broad linear range (0.05-1000 μM) and high sensitivity (3.86 μA μM−1 cm−2). Besides, the proposed sensor shows good selectivity, repeatability, reproducibility and long term operational stability. The appreciable recoveries was achieved for the detection of nitrite in water and sausage samples, which imply the practical feasibility of the modified electrode. © The Royal Society of Chemistry.
About the journal
JournalData powered by TypesetRSC Advances
PublisherData powered by TypesetRoyal Society of Chemistry
ISSN20462069
Open AccessNo
Concepts (25)
  •  related image
    Amino acids
  •  related image
    Carbon
  •  related image
    Chemical detection
  •  related image
    Copper
  •  related image
    Copper compounds
  •  related image
    Cyclic voltammetry
  •  related image
    Electrodes
  •  related image
    Energy dispersive spectroscopy
  •  related image
    Fourier transform infrared spectroscopy
  •  related image
    Glass membrane electrodes
  •  related image
    Graphene
  •  related image
    Nanocomposites
  •  related image
    Scanning electron microscopy
  •  related image
    Ultraviolet visible spectroscopy
  •  related image
    X ray diffraction
  •  related image
    X ray spectroscopy
  •  related image
    Electrocatalytic activity
  •  related image
    Electrochemical detection
  •  related image
    Electrochemical studies
  •  related image
    Fourier transform infra red (ftir) spectroscopy
  •  related image
    Modified glassy carbon electrode
  •  related image
    Non-covalent interaction
  •  related image
    Reduced graphene oxides (rgo)
  •  related image
    SCHIFF-BASE COPPER COMPLEXES
  •  related image
    Electrochemical impedance spectroscopy