КФУ. Карточка публикации. Novel approach for the voltammetric evaluation of antioxidant activity using DPPH[rad]-modified electrode

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NOVEL APPROACH FOR THE VOLTAMMETRIC EVALUATION OF ANTIOXIDANT ACTIVITY USING DPPH[RAD]-MODIFIED ELECTRODE

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2017

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Зиятдинова Гузель Камилевна, автор

Авторы, студенты КФУ

Снегурева Юлия Владимировна, автор

Библиографическое описание на языке оригинала

Ziyatdinova, G. Novel approach for the voltammetric evaluation of antioxidant activity using DPPH[rad]-modified electrode / G. Ziyatdinova, Yu. Snegureva, H. Budnikov // Electrochim. Acta. – 2017. – V. 247. – P. 97-106.

Аннотация

The electrochemical behavior of 2,2-diphenyl-1-picrylhydrazyl (DPPH) immobilized on the electrode surface has been studied. Bare glassy carbon electrode (GCE) and modified with dispersions of CeO2 nanoparticles in water (CeO2-H2O/GCE) and cationic surfactant cetylpyridinium bromide medium (CeO2-CPB/GCE) has been investigated as a platform for the DPPH immobilization. The best voltammetric characteristics (peak potential separation of 70 mV, system reversibility with currents ratio of 0.98 and the highest peaks currents) have been observed on CeO2-CPB/GCE. The effect of CeO2 nanoparticles concentration has been evaluated. Scanning electron microscopy and electrochemical impedance spectroscopy have been applied for the electrode characterization. DPPH/CeO2-CPB/GCE has been used for the estimation of the antioxidants activity of natural phenolic antioxidants (quercetin, tannin, catechin and ferulic acid) expressed as the EC50 parameter.

Ключевые слова

Voltammetry, chemically modified electrodes, DPPH, antioxidant activity, phytochemical analysis

Название журнала

ELECTROCHIMICA ACTA

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85022050582&doi=10.1016%2fj.electacta.2017.06.155&partnerID=40&md5=fad3844f6911decd3cde1dba0b2b0d49

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https://repository.kpfu.ru/?p_id=163949

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Будников Герман Константинович	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Снегурева Юлия Владимировна	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. Novel approach for the voltammetric evaluation of antioxidant activity using DPPH[rad]-modified electrode / G. Ziyatdinova, Yu. Snegureva, H. Budnikov // Electrochim. Acta. – 2017. – V. 247. – P. 97-106.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=163949	ru_RU
dc.description.abstract	ELECTROCHIMICA ACTA	ru_RU
dc.description.abstract	The electrochemical behavior of 2,2-diphenyl-1-picrylhydrazyl (DPPH) immobilized on the electrode surface has been studied. Bare glassy carbon electrode (GCE) and modified with dispersions of CeO2 nanoparticles in water (CeO2-H2O/GCE) and cationic surfactant cetylpyridinium bromide medium (CeO2-CPB/GCE) has been investigated as a platform for the DPPH immobilization. The best voltammetric characteristics (peak potential separation of 70 mV, system reversibility with currents ratio of 0.98 and the highest peaks currents) have been observed on CeO2-CPB/GCE. The effect of CeO2 nanoparticles concentration has been evaluated. Scanning electron microscopy and electrochemical impedance spectroscopy have been applied for the electrode characterization. DPPH/CeO2-CPB/GCE has been used for the estimation of the antioxidants activity of natural phenolic antioxidants (quercetin, tannin, catechin and ferulic acid) expressed as the EC50 parameter.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	DPPH	ru_RU
dc.subject	antioxidant activity	ru_RU
dc.subject	phytochemical analysis	ru_RU
dc.title	Novel approach for the voltammetric evaluation of antioxidant activity using DPPH[rad]-modified electrode	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU