КФУ. Карточка публикации. Polyquercetin/MWNT-Modified Electrode for the Determination of Natural Phenolic Antioxidants

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POLYQUERCETIN/MWNT-MODIFIED ELECTRODE FOR THE DETERMINATION OF NATURAL PHENOLIC ANTIOXIDANTS

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2017

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Гусс Екатерина Валерьевна, автор

Зиятдинова Гузель Камилевна, автор

Авторы, аспиранты КФУ

Гусс Екатерина Валерьевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova G. Polyquercetin/MWNT-modified electrode for the determination of natural phenolic antioxidants / G. Ziyatdinova, E. Kozlova, H. Budnikov // Electroanalysis. - 2017. - V. 29. - № 11 . - P. 2610-2619.

Аннотация

Novel highly sensitive voltammetric method for the gallic acid, catechin and epigallocatechin gallate (EGCG) quantification has been developed using glassy carbon electrode modified with multi-walled carbon nanotubes and polyquercetin (polyquercetin/MWNT/GCE). The effect of electropolymerization parameters (number of cycles, monomer concentration and polarization window) on the electrode characteristics has been evaluated. The electrode surface has been characterized with SEM, CV and EIS. The linear dynamic ranges of 0.50?10 and 10?750 mM for gallic acid, 0.10?10 and 10.0?250 mM for catechin and 0.050?10 and 10?100 mM for EGCG have been obtained in differential pulse mode with the detection limits of 0.10, 0.024 and 0.014 mM, respectively. The approach has been successfully applied for the tea antioxidant capacity evaluation (AOC). The positive correlations with antioxidant activity towards DPPH* and total phenolics (r=0.7845 and 0.7658 at rcrit=0.4227, n=22) have been obtained.

Ключевые слова

Voltammetry, electropolymerization, nanotubes, antioxidants, food analysis

Название журнала

ELECTROANALYSIS

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85028969949&doi=10.1002%2felan.201700440&partnerID=40&md5=55a5b232d6b55307081b52b55860ca36

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https://repository.kpfu.ru/?p_id=168227

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Будников Герман Константинович	ru_RU
dc.contributor.author	Гусс Екатерина Валерьевна	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Гусс Екатерина Валерьевна	ru_RU
dc.date.accessioned	2017-01-01T00:00:00Z	ru_RU
dc.date.available	2017-01-01T00:00:00Z	ru_RU
dc.date.issued	2017	ru_RU
dc.identifier.citation	Ziyatdinova G. Polyquercetin/MWNT-modified electrode for the determination of natural phenolic antioxidants / G. Ziyatdinova, E. Kozlova, H. Budnikov // Electroanalysis. - 2017. - V. 29. - № 11 . - P. 2610-2619.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=168227	ru_RU
dc.description.abstract	ELECTROANALYSIS	ru_RU
dc.description.abstract	Novel highly sensitive voltammetric method for the gallic acid, catechin and epigallocatechin gallate (EGCG) quantification has been developed using glassy carbon electrode modified with multi-walled carbon nanotubes and polyquercetin (polyquercetin/MWNT/GCE). The effect of electropolymerization parameters (number of cycles, monomer concentration and polarization window) on the electrode characteristics has been evaluated. The electrode surface has been characterized with SEM, CV and EIS. The linear dynamic ranges of 0.50?10 and 10?750 mM for gallic acid, 0.10?10 and 10.0?250 mM for catechin and 0.050?10 and 10?100 mM for EGCG have been obtained in differential pulse mode with the detection limits of 0.10, 0.024 and 0.014 mM, respectively. The approach has been successfully applied for the tea antioxidant capacity evaluation (AOC). The positive correlations with antioxidant activity towards DPPH* and total phenolics (r=0.7845 and 0.7658 at rcrit=0.4227, n=22) have been obtained.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	electropolymerization	ru_RU
dc.subject	nanotubes	ru_RU
dc.subject	antioxidants	ru_RU
dc.subject	food analysis	ru_RU
dc.title	Polyquercetin/MWNT-Modified Electrode for the Determination of Natural Phenolic Antioxidants	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU