KFU. Card publication. Poly(Phenol Red)-Based Voltammetric Sensor for the Simultaneous Quantification of Hydroxycinnamic Acids

KAZAN
FEDERAL UNIVERSITY

- RUS
- 中文
- ES

POLY(PHENOL RED)-BASED VOLTAMMETRIC SENSOR FOR THE SIMULTANEOUS QUANTIFICATION OF HYDROXYCINNAMIC ACIDS

Form of presentation

Articles in international journals and collections

Year of publication

2023

��

��

Authors, employees of KFU

Zhupanova Anastasiya Sergeevna, author

Ziyatdinova Guzel Kamilevna, author

Authors, postgraduates KFU

Zhupanova Anastasiya Sergeevna, postgraduate kfu

Bibliographic description in the original language

Zhupanova, A. Poly(phenol red)-based voltammetric sensor for the simultaneous quantification of hydroxycinnamic acids / A. Zhupanova, G. Ziyatdinova // Eng. Proc. - 2023. - V. 31. - � 1. - Article 4. - 5 p.

Annotation

Hydroxycinnamic acids are one of the most widely distributed classes of natural phenolics in plants. Their coexistence requires selective methods for quantification. Voltammetry on chemically modified electrodes is one of the approaches to solving this problem. Electrodes based on electropolymerized triphenylmethane dyes give sensitive and selective responses to natural phenolic antioxidants of different classes. In this work, a combination of polyaminobenzene sulfonic acid functionalized single-walled carbon nanotubes (f-SWCNTs), and poly(phenol red) was used as an electrode surface modifier. The polymeric coverage was obtained by potentiodynamic electropolymerization, the conditions of which were optimized on the basis of the voltammetric response of the hydroxycinnamic acid mixture. Poly(phenol red)-based electrodes provided well-resolved peaks of caffeic, ferulic, and p-coumaric acids, and a significant increase in the oxidation currents compared to bare glassy carbon (GCE) and f-SWCNTs-modified electrodes. Simultaneous voltammetric quantification of caffeic, ferulic, and p-coumaric acids was performed for the first time. Two linear dynamic ranges of 0.10?2.5 ?M for all acids, 2.5?100 ?M for caffeic acid, and 2.5?50 ?M for ferulic and p-coumaric acids were achieved using differential pulse voltammetry in a Britton?Robinson buffer with a pH of 2.0. The limits of detection were 47.6, 22.4, and 38.0 nM for the caffeic, ferulic, and p-coumaric acids, respectively.

Keywords

Voltammetry, modified electrodes, electropolymerization, triphenylmethane dyes, natural phenolics, hydroxycinnamic acids, simultaneous quantification

The name of the journal

Engineering Proceedings

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163648301&doi=10.3390%2fASEC2022-13863&partnerID=40&md5=6de9649b297880b33a604d9017d05da0

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

https://repository.kpfu.ru/eng/?p_id=286669&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Zhupanova Anastasiya Sergeevna	ru_RU
dc.contributor.author	Ziyatdinova Guzel Kamilevna	ru_RU
dc.contributor.author	Zhupanova Anastasiya Sergeevna	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	Zhupanova, A. Poly(phenol red)-based voltammetric sensor for the simultaneous quantification of hydroxycinnamic acids / A. Zhupanova, G. Ziyatdinova // Eng. Proc. - 2023. - V. 31. - � 1. - Article 4. - 5 p.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=286669&p_lang=2	ru_RU
dc.description.abstract	Engineering Proceedings	ru_RU
dc.description.abstract	Hydroxycinnamic acids are one of the most widely distributed classes of natural phenolics in plants. Their coexistence requires selective methods for quantification. Voltammetry on chemically modified electrodes is one of the approaches to solving this problem. Electrodes based on electropolymerized triphenylmethane dyes give sensitive and selective responses to natural phenolic antioxidants of different classes. In this work, a combination of polyaminobenzene sulfonic acid functionalized single-walled carbon nanotubes (f-SWCNTs), and poly(phenol red) was used as an electrode surface modifier. The polymeric coverage was obtained by potentiodynamic electropolymerization, the conditions of which were optimized on the basis of the voltammetric response of the hydroxycinnamic acid mixture. Poly(phenol red)-based electrodes provided well-resolved peaks of caffeic, ferulic, and p-coumaric acids, and a significant increase in the oxidation currents compared to bare glassy carbon (GCE) and f-SWCNTs-modified electrodes. Simultaneous voltammetric quantification of caffeic, ferulic, and p-coumaric acids was performed for the first time. Two linear dynamic ranges of 0.10?2.5 ?M for all acids, 2.5?100 ?M for caffeic acid, and 2.5?50 ?M for ferulic and p-coumaric acids were achieved using differential pulse voltammetry in a Britton?Robinson buffer with a pH of 2.0. The limits of detection were 47.6, 22.4, and 38.0 nM for the caffeic, ferulic, and p-coumaric acids, respectively.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	modified electrodes	ru_RU
dc.subject	electropolymerization	ru_RU
dc.subject	triphenylmethane dyes	ru_RU
dc.subject	natural phenolics	ru_RU
dc.subject	hydroxycinnamic acids	ru_RU
dc.subject	simultaneous quantification	ru_RU
dc.title	Poly(Phenol Red)-Based Voltammetric Sensor for the Simultaneous Quantification of Hydroxycinnamic Acids	ru_RU
dc.type	Articles in international journals and collections	ru_RU