Square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode

Poly (safranine O) modified glassy carbon electrode (poly (safranine O)/GCE) was prepared by electropolymerization of safranine O on glassy carbon electrode (GCE) for the sensitive determination of quercetin (QR). The modified electrode was characterized by cyclic voltammetry (CV), electrochemical i...

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Autores principales:	Gizaw Tesfaye, Tesfu Hailu, Estifanos Ele, Negussie Negash, Merid Tessema
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Poly (safranine O) Quercetin Square wave voltammetry Wine Fruit juice electrocatalytic activity Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/7f96bfebafd044c3b4d758b60d226646
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spelling	oai:doaj.org-article:7f96bfebafd044c3b4d758b60d2266462021-11-30T04:15:58ZSquare wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode2214-180410.1016/j.sbsr.2021.100466https://doaj.org/article/7f96bfebafd044c3b4d758b60d2266462021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2214180421000714https://doaj.org/toc/2214-1804Poly (safranine O) modified glassy carbon electrode (poly (safranine O)/GCE) was prepared by electropolymerization of safranine O on glassy carbon electrode (GCE) for the sensitive determination of quercetin (QR). The modified electrode was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Fourier transform infrared (FTIR), UV‐visible spectroscopy and scanning electron microscopy (SEM). The electrochemical behavior of QR was studied using CV and square wave voltammetry (SWV). The results showed that the poly (safranine O)/GCE exhibited high electrocatalytic activity towards the electrochemical reaction of QR. From CV study, QR exhibited quasi-reversible behaviour with two electron-transfer through adsorption controlled process. Under the optimized experimental conditions, the calibration curve for electrochemical determination of QR at the poly(safranine O)/GCE using SWV showed a linear concentration range of 0.01 μM to 8 μM with detection limit, quantification limit and sensitivity of 0.005 μM, 0.017 μM and 16.56 μA/μM, respectively. Furthermore, the poly (safranine O)/GCE sensor showed good stability, reproducibility, repeatability, sensitivity and selectivity for QR determination. Finally, the proposed method was successfully applied for the determination of QR in wine and fruit juice samples with satisfactory percentage recovery of 90.7 to 105.5% and relative standard deviation of 0.65 to 6.5%. The validity of the developed method was confirmed by comparing the results with those performed through high-performance liquid chromatography (HPLC) and results were consistent with values obtained from HPLC.Gizaw TesfayeTesfu HailuEstifanos EleNegussie NegashMerid TessemaElsevierarticlePoly (safranine O)QuercetinSquare wave voltammetryWineFruit juiceelectrocatalytic activityEngineering (General). Civil engineering (General)TA1-2040ENSensing and Bio-Sensing Research, Vol 34, Iss , Pp 100466- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Poly (safranine O) Quercetin Square wave voltammetry Wine Fruit juice electrocatalytic activity Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Poly (safranine O) Quercetin Square wave voltammetry Wine Fruit juice electrocatalytic activity Engineering (General). Civil engineering (General) TA1-2040 Gizaw Tesfaye Tesfu Hailu Estifanos Ele Negussie Negash Merid Tessema Square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode
description	Poly (safranine O) modified glassy carbon electrode (poly (safranine O)/GCE) was prepared by electropolymerization of safranine O on glassy carbon electrode (GCE) for the sensitive determination of quercetin (QR). The modified electrode was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), Fourier transform infrared (FTIR), UV‐visible spectroscopy and scanning electron microscopy (SEM). The electrochemical behavior of QR was studied using CV and square wave voltammetry (SWV). The results showed that the poly (safranine O)/GCE exhibited high electrocatalytic activity towards the electrochemical reaction of QR. From CV study, QR exhibited quasi-reversible behaviour with two electron-transfer through adsorption controlled process. Under the optimized experimental conditions, the calibration curve for electrochemical determination of QR at the poly(safranine O)/GCE using SWV showed a linear concentration range of 0.01 μM to 8 μM with detection limit, quantification limit and sensitivity of 0.005 μM, 0.017 μM and 16.56 μA/μM, respectively. Furthermore, the poly (safranine O)/GCE sensor showed good stability, reproducibility, repeatability, sensitivity and selectivity for QR determination. Finally, the proposed method was successfully applied for the determination of QR in wine and fruit juice samples with satisfactory percentage recovery of 90.7 to 105.5% and relative standard deviation of 0.65 to 6.5%. The validity of the developed method was confirmed by comparing the results with those performed through high-performance liquid chromatography (HPLC) and results were consistent with values obtained from HPLC.
format	article
author	Gizaw Tesfaye Tesfu Hailu Estifanos Ele Negussie Negash Merid Tessema
author_facet	Gizaw Tesfaye Tesfu Hailu Estifanos Ele Negussie Negash Merid Tessema
author_sort	Gizaw Tesfaye
title	Square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode
title_short	Square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode
title_full	Square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode
title_fullStr	Square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode
title_full_unstemmed	Square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode
title_sort	square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine o) modified glassy carbon electrode
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/7f96bfebafd044c3b4d758b60d226646
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Square wave voltammetric determination of quercetin in wine and fruit juice samples at poly (safranine O) modified glassy carbon electrode

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