Synchronous activation of praseodymium vanadate/graphitic carbon nitride nanocomposite: A promising electrode material for detection of flavonoid– Quercetin.
In: Food Chemistry, Jg. 441 (2024-05-30), S. N.PAG
academicJournal
Zugriff:
[Display omitted] • The quercetin was detected using the electrochemical sensing method. • The PrV@g-CN composite was prepared by the hydrothermal method. • The synergetic effect between the PrVO 4 and g-CN enhanced the detection of Qc. • The PrV@g-CN shows a linear range of 0.05–252.0 µM and LOD 0.002 µM of towards Qc. • The proposed sensor was applied for Qc detection in green and black tea samples. Flavonoids or phenolic compounds are part of the daily intake of every human being. Though they are positive traders for metabolism, excessive intakes bring about detrimental impacts on human health. Herein, the anti-cancer capacitive nature quercetin (Qc) was electrochemically detected through the rare earth metal-based sphere like praseodymium vanadate (PrVO 4) entrapped graphitic carbon nitride (g-CN) as electrode modifiers. The nanocomposite was prepared by the one-pot hydrothermal method and characterized by phase compositional and morphology-based techniques. The existing synergistic nature between the PrV@g-CN (praseodymium vanadate@graphitic carbon nitride) makes them have an enhanced electrochemical response towards the Qc than the individual material. The obtained cyclic voltammogram and differential pulse voltammogram profile show one major oxidation peak which is attributed to the conversion of quercetin to quercetin-o-quinone. The PrV@g-CN/GCE (GCE- glassy carbon electrode) shows a good electrochemical active surface area (A = 110 cm2) and linear range between 0.05 and 252.00 μM with a LOD (limit of detection) of 0.002 µM. Moreover, the PrV@g-CN/GCE exhibits good current retention (94.76 %) around 14 days and appreciable repeatability (RSD- 0.5 %) and reproducibility (RSD- 1.3 %) towards the Qc. The real-time implementation of the proposed sensor exhibits a good recovery range towards the black tea (95.00–98.10 %) and green tea (97.80–99.60 %). [ABSTRACT FROM AUTHOR]
Titel: |
Synchronous activation of praseodymium vanadate/graphitic carbon nitride nanocomposite: A promising electrode material for detection of flavonoid– Quercetin.
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Autor/in / Beteiligte Person: | Bharathi, Pandiyan ; Wang, Sea-Fue |
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Zeitschrift: | Food Chemistry, Jg. 441 (2024-05-30), S. N.PAG |
Veröffentlichung: | 2024 |
Medientyp: | academicJournal |
ISSN: | 0308-8146 (print) |
DOI: | 10.1016/j.foodchem.2024.138405 |
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