Highly Sensitive Square Wave Voltammetric Determination of Sunset Yellow at a functionalized-MWCNTs/poly(Alizarin Red-S) Composite Modified Electrode


ELECTROANALYSIS, vol.34, no.10, pp.1644-1655, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 10
  • Publication Date: 2022
  • Doi Number: 10.1002/elan.202100566
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, BIOSIS, Chemical Abstracts Core, Chimica, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1644-1655
  • Keywords: Sunset Yellow, Alizarin Red S, functionalized MWCNTs, Voltammetry Electrochemistry
  • Çanakkale Onsekiz Mart University Affiliated: Yes


This work presents an effective and highly sensitive electrochemical detection of Sunset Yellow (SSY) at poly(Alizarin Red-S) and functionalized multi-walled carbon nanotubes composite modified glassy carbon electrode (f-MWCNTs/poly(ALR-S)/GCE). The electrochemical response of the f-MWCNTs/poly(ALR-S)/GCE towards SSY was examined by cyclic voltammetry (CV) and square wave voltammetry (SWV). Both recorded cyclic voltammograms (CVs) and square wave voltammograms (SWVs) showed that the oxidation/reduction peaks of SSY at f-MWCNTs/poly(ALR-S)/GCE were found to be much higher than the bare GCE, f-MWCNTs/GCE, and poly(ALR-S)/GCE. Calibration curves obtained from the SWVs indicated that the f-MWCNTs/poly(ALR-S)/GCE offers a linear response in the range of 0.50 to 256 mu M with a low detection limit (LOD) of 0.16 mu M and the sensitivity was found to be 9686 mu A mM(-1) cm(-2). The f-MWCNTs/poly(ALR-S)/GCE provides excellent performance for the detection of SSY in daily life samples with high accuracy and precision.