Electrode with the Electrodeposited Gold–Bismuth Binary System for Voltammetric Determination of Phenylephrine, Paracetamol, and Caffeine
https://doi.org/10.26907/2542-064X.2023.1.83-93
Abstract
The Au–Bi binary system electrodeposited on the surface of a glassy carbon electrode exhibits catalytic activity during the electrooxidation of phenylephrine, paracetamol, and caffeine that enhances the peak currents and decreases overvoltage in the oxidation of organic compounds. The potential difference between the peaks of oxidation on the modified electrode is 400 mV for phenylephrine and paracetamol and 300 mV for phenylephrine and caffeine, respectively. The possibility of simultaneous voltammetric determination of phenylephrine, paracetamol, and caffeine on the glassy carbon electrode modified by the Au–Bi binary system was established. The calibration curve is linear in the concentration range from 5·10–6 to 5·10–3 M. The developed method was tested in the analysis of combined drugs.
Keywords
voltammetry,
modified electrodes,
gold–bismuth binary system,
electrooxidation,
phenylephrine,
paracetamol,
caffeine
Supporting agencies: This study was supported by the Kazan Federal University Strategic Academic Leadership Program (PRIORITY-2030).
About the Authors
L. G. Shaidarova
Kazan Federal University
Russian Federation
Russian Federation
Kazan, 420008
I. A. Chelnokova
Kazan Federal University
Russian Federation
Russian Federation
Kazan, 420008
D. A. Koryakovtsev
Kazan Federal University
Russian Federation
Russian Federation
Kazan, 420008
H. S. Budnikov
Kazan Federal University
Russian Federation
Russian Federation
Kazan, 420008
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Review
For citations:
Shaidarova L.G., Chelnokova I.A., Koryakovtsev D.A., Budnikov H.S. Electrode with the Electrodeposited Gold–Bismuth Binary System for Voltammetric Determination of Phenylephrine, Paracetamol, and Caffeine. Uchenye Zapiski Kazanskogo Universiteta Seriya Estestvennye Nauki. 2023;165(1):83–93. (In Russ.) https://doi.org/10.26907/2542-064X.2023.1.83-93
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