Electrochemical behavior of quercetin on boron-doped diamond electrode in different supporting electrolytes

Quercetin is one of the most abundant flavonoid compounds with a broad spectrum of health beneficial properties. In this study electrochemical behavior of quercetin on boron-doped diamond electrode as a working electrode was investigated in different supporting electrolytes. Experiments embraced 0.1...

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Bibliographic Details
Main Authors: Đurović Ana
Stojanović Zorica
Kravić Snežana
Suturović Zvonimir
Richtera Lukas
Brezo-Borjan Tanja
Corporate Author: International Symposium on Analytical and Environmental Problems (25.) (2019) (Szeged)
Format: Book part
Published: 2019
Series:Proceedings of the International Symposium on Analytical and Environmental Problems
Kulcsszavak:Elektrokémia, Elektrolitok
Online Access:http://acta.bibl.u-szeged.hu/64800
Description
Summary:Quercetin is one of the most abundant flavonoid compounds with a broad spectrum of health beneficial properties. In this study electrochemical behavior of quercetin on boron-doped diamond electrode as a working electrode was investigated in different supporting electrolytes. Experiments embraced 0.1 mol/L acetate buffer, citrate buffer, phosphate buffer, 0.04 mol/L Britton-Robinson buffer and 0.05 mol/L solution of HCl, while studied quercetin concentration were in the range from 2 mg/L to 30 mg/L. Voltammograms recorded in different supporting electrolytes revealed one sharp and well-defined oxidation peak of quercetin at the potential of about +0.70 V, and it was chosen for quantification of quercetin, although in some buffers one additional protracted peak was observed. In comparison to differential pulse voltammetry, square-wave voltammetry showed higher sensitivity, so this technique could be more suitable for further development. Even though high values of correlation coefficients (> 0.9900) were obtained for all studied supporting electrolytes, the best results in terms of sensitivity were observed for citrate and Britton-Robinson buffers. These preliminary results demonstrated that boron-doped diamond electrode can be used as a sensitive sensor for precise determination of quercetin in real samples.
Physical Description:124-127
ISBN:978-963-306-702-4