КФУ. Карточка публикации. Voltammetric determination of flavonoids in medicinal plant materials using electrodes modified by cerium dioxide nanoparticles and surfactants

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VOLTAMMETRIC DETERMINATION OF FLAVONOIDS IN MEDICINAL PLANT MATERIALS USING ELECTRODES MODIFIED BY CERIUM DIOXIDE NANOPARTICLES AND SURFACTANTS

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2019

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Зиганшина Эндже Ришатовна, автор

Зиятдинова Гузель Камилевна, автор

Авторы, студенты КФУ

Захарова Светлана Петровна, автор

Библиографическое описание на языке оригинала

Ziyatdinova, G.K. Voltammetric determination of flavonoids in medicinal plant materials using electrodes modified by cerium dioxide nanoparticles and surfactants / G.K. Ziyatdinova, S.P. Zakharova, E.R. Ziganshina, H.C. Budnikov // J. Anal. Chem. - 2019. - V. 74. - № 8. - P. 816-824.

Аннотация

Methods for the voltammetric determination of flavonoids (rutin and quercetin) using electrodes modified with CeO2 nanoparticles and various surfactants have been developed . The voltammetric characteristics of analytes are most properly recorded on a glassy carbon electrode modified with CeO2 nanoparticles dispersed in anionic sodium dodecyl sulfate. The electro-oxidation of quercetin and rutin is adsorption-controlled and proceeds with the participation of two electrons and two protons. Under conditions of differential pulse voltammetry in a Britton–Robinson buffer solution with pH 2.0, the analytical ranges are 0.01–1.0 and 1.0–250 ?M for quercetin and 0.10–100 ?M for rutin with the limits of detection (S/N = 3) of 2.9 and 28 nM, respectively. The proposed approaches were tested in analyzing water and alcohol extracts from medicinal plant materials (St. John's wort herb, marigold flowers, and bearberry leaves). The conditions for the extraction of flavonoids from raw materials with ethanol are found. The results of the voltammetric determination of quercetin and rutin in plant raw materials correlate with the total flavonoids according to spectrophotometry: r = 0.929 with rcrit = 0.521 for n = 11 in the case of quercetin and r = 0.951 at rcrit = 0.729 for n = 6 for rutin.

Ключевые слова

Voltammetry, chemically modified electrodes, nanoparticles of metal oxides, surfactants, flavonoids, medicinal plant materials

Название журнала

JOURNAL OF ANALYTICAL CHEMISTRY

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070482357&doi=10.1134%2fS106193481908015X&partnerID=40&md5=ea6e5f63278ddb733c58f25e20f1bb3d

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https://repository.kpfu.ru/?p_id=206783

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Будников Герман Константинович	ru_RU
dc.contributor.author	Зиганшина Эндже Ришатовна	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Захарова Светлана Петровна	ru_RU
dc.date.accessioned	2019-01-01T00:00:00Z	ru_RU
dc.date.available	2019-01-01T00:00:00Z	ru_RU
dc.date.issued	2019	ru_RU
dc.identifier.citation	Ziyatdinova, G.K. Voltammetric determination of flavonoids in medicinal plant materials using electrodes modified by cerium dioxide nanoparticles and surfactants / G.K. Ziyatdinova, S.P. Zakharova, E.R. Ziganshina, H.C. Budnikov // J. Anal. Chem. - 2019. - V. 74. - № 8. - P. 816-824.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=206783	ru_RU
dc.description.abstract	JOURNAL OF ANALYTICAL CHEMISTRY	ru_RU
dc.description.abstract	Methods for the voltammetric determination of flavonoids (rutin and quercetin) using electrodes modified with CeO2 nanoparticles and various surfactants have been developed . The voltammetric characteristics of analytes are most properly recorded on a glassy carbon electrode modified with CeO2 nanoparticles dispersed in anionic sodium dodecyl sulfate. The electro-oxidation of quercetin and rutin is adsorption-controlled and proceeds with the participation of two electrons and two protons. Under conditions of differential pulse voltammetry in a Britton–Robinson buffer solution with pH 2.0, the analytical ranges are 0.01–1.0 and 1.0–250 ?M for quercetin and 0.10–100 ?M for rutin with the limits of detection (S/N = 3) of 2.9 and 28 nM, respectively. The proposed approaches were tested in analyzing water and alcohol extracts from medicinal plant materials (St. John's wort herb, marigold flowers, and bearberry leaves). The conditions for the extraction of flavonoids from raw materials with ethanol are found. The results of the voltammetric determination of quercetin and rutin in plant raw materials correlate with the total flavonoids according to spectrophotometry: r = 0.929 with rcrit = 0.521 for n = 11 in the case of quercetin and r = 0.951 at rcrit = 0.729 for n = 6 for rutin.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	nanoparticles of metal oxides	ru_RU
dc.subject	surfactants	ru_RU
dc.subject	flavonoids	ru_RU
dc.subject	medicinal plant materials	ru_RU
dc.title	Voltammetric determination of flavonoids in medicinal plant materials using electrodes modified by cerium dioxide nanoparticles and surfactants	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU