КФУ. Карточка публикации. Voltammetric Determination of Tannic Acid in Medicinal Plants Using Multi-Walled Carbon Nanotube-Modified Electrode

КАЗАНСКИЙ
ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ

RUS

- EN
- 中文
- ES

VOLTAMMETRIC DETERMINATION OF TANNIC ACID IN MEDICINAL PLANTS USING MULTI-WALLED CARBON NANOTUBE-MODIFIED ELECTRODE

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2023

Язык

английский

Авторы, сотрудники КФУ

Зиятдинова Гузель Камилевна, автор

Авторы, студенты КФУ

Иванова Мария Петровна, автор

Библиографическое описание на языке оригинала

Ziyatdinova, G. Voltammetric determination of tannic acid in medicinal plants using multi-walled carbon nanotube-modified electrode / G. Ziyatdinova, M. Ivanova // Eng. Proc. – 2023. – V. 48. – № 1. – Article 53. – 6 p.

Аннотация

Tannins are a class of natural phenolic antioxidants represented by oligomers and polymers. Tannic acid (gallotannin) (TA) is one of the most typical compounds widely distributed in plants. It has a wide application area in food technology and as a part of traditional herbal medicine in the treatment of various diseases. TA is one of the standards used in medicinal plant quality control for plants rich in tannins. Therefore, the development of sensitive and simple methods for TA quantification is of practical interest. Glassy carbon electrode modified with multi-walled carbon nanotubes (GCE/MWCNTs) has been developed for the determination of TA in medicinal plants. An improvement in TA voltammetric response has been achieved using modified electrode due to the high electroactive surface area and electron transfer rate vs. bare electrode. TA electrooxidation at the GCE/MWCNTs is an irreversible surface-controlled process involving the transfer of two electrons and two protons in the first step. In differential pulse mode using Britton–Robinson buffer pH 2.0 as the supporting electrolyte, a linear dynamic range of 0.10–7.5 μM with a detection limit of 0.038 μM has been obtained. The method has been applied for the analysis of infusions and decoctions of tannin-containing medicinal plants and compared to the spectrophotometric method. A positive correlation has been observed with ferric reducing power reflecting the total content of phenolic compounds in the sample.

Ключевые слова

Voltammetry, chemically modified electrodes, carbon nanotubes, phenolic antioxidants, tannic acid, medicinal plants, phytoanalysis

Название журнала

Engineering Proceedings

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186483443&doi=10.3390%2fCSAC2023-15165&partnerID=40&md5=136a7de5129e87ffddb31e2fd0ae2fc4

Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку

https://repository.kpfu.ru/?p_id=297465

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Иванова Мария Петровна	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	Ziyatdinova, G. Voltammetric determination of tannic acid in medicinal plants using multi-walled carbon nanotube-modified electrode / G. Ziyatdinova, M. Ivanova // Eng. Proc. – 2023. – V. 48. – № 1. – Article 53. – 6 p.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=297465	ru_RU
dc.description.abstract	Engineering Proceedings	ru_RU
dc.description.abstract	Tannins are a class of natural phenolic antioxidants represented by oligomers and polymers. Tannic acid (gallotannin) (TA) is one of the most typical compounds widely distributed in plants. It has a wide application area in food technology and as a part of traditional herbal medicine in the treatment of various diseases. TA is one of the standards used in medicinal plant quality control for plants rich in tannins. Therefore, the development of sensitive and simple methods for TA quantification is of practical interest. Glassy carbon electrode modified with multi-walled carbon nanotubes (GCE/MWCNTs) has been developed for the determination of TA in medicinal plants. An improvement in TA voltammetric response has been achieved using modified electrode due to the high electroactive surface area and electron transfer rate vs. bare electrode. TA electrooxidation at the GCE/MWCNTs is an irreversible surface-controlled process involving the transfer of two electrons and two protons in the first step. In differential pulse mode using Britton–Robinson buffer pH 2.0 as the supporting electrolyte, a linear dynamic range of 0.10–7.5 μM with a detection limit of 0.038 μM has been obtained. The method has been applied for the analysis of infusions and decoctions of tannin-containing medicinal plants and compared to the spectrophotometric method. A positive correlation has been observed with ferric reducing power reflecting the total content of phenolic compounds in the sample.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	carbon nanotubes	ru_RU
dc.subject	phenolic antioxidants	ru_RU
dc.subject	tannic acid	ru_RU
dc.subject	medicinal plants	ru_RU
dc.subject	phytoanalysis	ru_RU
dc.title	Voltammetric Determination of Tannic Acid in Medicinal Plants Using Multi-Walled Carbon Nanotube-Modified Electrode	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU