Highly Sensitive Square Wave Voltammetric Determination of Sunset Yellow at a functionalized-MWCNTs/poly(Alizarin Red-S) Composite Modified Electrode
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Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-V C H Verlag Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Sunset Yellow, Alizarin Red S, functionalized MWCNTs, Voltammetry Electrochemistry
Kaynak
Electroanalysis
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
34
Sayı
10
