KFU. Card publication. Electrode Modified with Carboxylated Multi-Walled Carbon Nanotubes and Electropolymerized Pyrogallol Red for the Determination of Eugenol

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ELECTRODE MODIFIED WITH CARBOXYLATED MULTI-WALLED CARBON NANOTUBES AND ELECTROPOLYMERIZED PYROGALLOL RED FOR THE DETERMINATION OF EUGENOL

Form of presentation

Articles in international journals and collections

Year of publication

2023

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Authors, employees of KFU

Ziyatdinova Guzel Kamilevna, author

Kalmykova Alena Denisovna, author

Authors, postgraduates KFU

Kalmykova Alena Denisovna, postgraduate kfu

Bibliographic description in the original language

Kalmykova, A. Electrode modified with carboxylated multi-walled carbon nanotubes and electropolymerized pyrogallol red for the determination of eugenol / A. Kalmykova, G. Ziyatdinova // Eng. Proc. – 2023. – V. 56. – � 1. – Art. 169. – 6 p.

Annotation

Eugenol is the major component of cloves and clove-based products, which are widely used in food, the pharmaceutical industry, and medicine. Its content can be considered a marker of the sample quality. Therefore, simple, sensitive, and reliable methods for eugenol quantification are required. Glassy carbon electrodes (GCEs) modified with carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) and electropolymerized pyrogallol red were developed for the determination of eugenol in essential oils. The working conditions (supporting electrolyte, pH, monomer concentration, and electrolysis parameters) of pyrogallol red were found using voltammetric characteristics of eugenol. The electrodes developed were studied using scanning electron microscopy, voltammetry, and electrochemical impedance spectroscopy. The effectivity of the electrode surface modification was demonstrated. Eugenol determination was performed in differential pulse mode, whose parameters have been optimized. The linear response of the electrodes towards eugenol was obtained in the range of 0.75–100 ?M with a detection limit of 0.73 ?M. The high selectivity of eugenol determination was observed in the presence of typical inorganic and organic compounds, including essential oils components. The approach developed was tested on commercial clove, cinnamon, and nutmeg essential oils. Validation with the independent method showed similar accuracy and the absence of systematic errors in eugenol determination.

Keywords

Eugenol, modified electrodes, electropolymerization, pyrogallol red, voltammetry, essential oils

The name of the journal

Engineering Proceedings

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186476322&doi=10.3390%2fASEC2023-15301&partnerID=40&md5=ebcac238111c0a1a3f06327f6630773d

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=297464&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Ziyatdinova Guzel Kamilevna	ru_RU
dc.contributor.author	Kalmykova Alena Denisovna	ru_RU
dc.contributor.author	Kalmykova Alena Denisovna	ru_RU
dc.date.accessioned	2023-01-01T00:00:00Z	ru_RU
dc.date.available	2023-01-01T00:00:00Z	ru_RU
dc.date.issued	2023	ru_RU
dc.identifier.citation	Kalmykova, A. Electrode modified with carboxylated multi-walled carbon nanotubes and electropolymerized pyrogallol red for the determination of eugenol / A. Kalmykova, G. Ziyatdinova // Eng. Proc. – 2023. – V. 56. – � 1. – Art. 169. – 6 p.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=297464&p_lang=2	ru_RU
dc.description.abstract	Engineering Proceedings	ru_RU
dc.description.abstract	Eugenol is the major component of cloves and clove-based products, which are widely used in food, the pharmaceutical industry, and medicine. Its content can be considered a marker of the sample quality. Therefore, simple, sensitive, and reliable methods for eugenol quantification are required. Glassy carbon electrodes (GCEs) modified with carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) and electropolymerized pyrogallol red were developed for the determination of eugenol in essential oils. The working conditions (supporting electrolyte, pH, monomer concentration, and electrolysis parameters) of pyrogallol red were found using voltammetric characteristics of eugenol. The electrodes developed were studied using scanning electron microscopy, voltammetry, and electrochemical impedance spectroscopy. The effectivity of the electrode surface modification was demonstrated. Eugenol determination was performed in differential pulse mode, whose parameters have been optimized. The linear response of the electrodes towards eugenol was obtained in the range of 0.75–100 ?M with a detection limit of 0.73 ?M. The high selectivity of eugenol determination was observed in the presence of typical inorganic and organic compounds, including essential oils components. The approach developed was tested on commercial clove, cinnamon, and nutmeg essential oils. Validation with the independent method showed similar accuracy and the absence of systematic errors in eugenol determination.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Eugenol	ru_RU
dc.subject	modified electrodes	ru_RU
dc.subject	electropolymerization	ru_RU
dc.subject	pyrogallol red	ru_RU
dc.subject	voltammetry	ru_RU
dc.subject	essential oils	ru_RU
dc.title	Electrode Modified with Carboxylated Multi-Walled Carbon Nanotubes and Electropolymerized Pyrogallol Red for the Determination of Eugenol	ru_RU
dc.type	Articles in international journals and collections	ru_RU