Adsorptive Stripping Voltammetric Quercetin Determination in Pharmaceuticals and Urine Samples Using a Long Service-Life Array of Carbon Composite Microelectrodes

This article presents for the first time a new working electrode with a long service life- the bismuth-plated array of carbon composite microelectrodes for the simple, fast and sensitive determination of quercetin by adsorptive stripping voltammetry. The main experimental conditions were selected. T...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2024-09, Vol.29 (18), p.4464
Main Authors: Gęca, Iwona, Korolczuk, Mieczyslaw
Format: Article
Language:English
Subjects:
Adsorption
adsorptive stripping voltammetry
Bioflavonoids
Carbon
Carbon - chemistry
Chromatography
determination
Electrochemical Techniques
Electrodes
Electrolytes
Electrons
Flavones
Flavonoids
Graphene
Humans
Limit of Detection
Microelectrodes
Nanocomposites
Nanoparticles
Optimization
Oxidation
Pharmaceutical Preparations - analysis
Pharmaceutical Preparations - urine
Pharmaceuticals
quercetin
Quercetin - analysis
Quercetin - urine
the array of carbon composite microelectrodes
Urine
Voltammetry
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Summary:This article presents for the first time a new working electrode with a long service life- the bismuth-plated array of carbon composite microelectrodes for the simple, fast and sensitive determination of quercetin by adsorptive stripping voltammetry. The main experimental conditions were selected. The calibration graph was linear from 1 × 10 to 2 × 10 mol L with an accumulation time of 60 s. The detection limit was equal to 4.8 × 10 mol L . The relative standard deviation for 2 × 10 mol L of quercetin was 4.4% (n = 7). Possible interference effects resulting from the presence of other organic and surface active compounds and interfering ions were studied. The developed procedure was successfully applied to determine quercetin in pharmaceutical preparations and the spiked urine samples.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules29184464