КФУ. Карточка публикации. Chronoamperometric estimation of cognac and brandy antioxidant capacity using MWNT modified glassy carbon electrode

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CHRONOAMPEROMETRIC ESTIMATION OF COGNAC AND BRANDY ANTIOXIDANT CAPACITY USING MWNT MODIFIED GLASSY CARBON ELECTRODE

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2014

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Зиятдинова Гузель Камилевна, автор

Авторы, студенты КФУ

Салихова Инна Равилевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova G. Chronoamperometric estimation of cognac and brandy antioxidant capacity using MWNT modified glassy carbon electrode / G. Ziyatdinova, I. Salikhova, H. Budnikov // Talanta. – 2014. – V.125. – P.378-384.

Аннотация

Cognac and brandy components are electrochemically oxidized on multi-walled carbon nanotube modified glassy carbon electrode at 0.44 and 0.59 V in 0.1 М phosphate buffer solution pH 3.0. Voltammetric behavior of the main antioxidant constituents of cognac (ellagic and gallic acids, syringaldehyde, coniferaldehyde, vanillin, 5-hydroxymethylfurfural and furfural) has been investigated. The peak at the less positive potential of cognacs is caused by oxidation of gallic acid as well as syring- and coniferaldehydes. The second peak corresponds to ellagic acid oxidation. One-step chronoamperometry at 0.59 V for 75 s has been applied for the cognac and brandy antioxidant capacity (AOC) evaluation. Ellagic acid being the main antioxidant of cognac has been used as reference substance. The chronoamperometric response of ellagic acid is linear in the range of 0.66?52.8 ?M with the limits of detection and quantification of 0.19 and 0.63 ?M, respectively. AOC in ellagic acid equivalents per 100 mL

Ключевые слова

Chronoamperometry, Voltammetry, Chemically modified electrodes, Antioxidant capacity, Phenolic antioxidants, Cognac and brandy

Название журнала

TALANTA

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https://repository.kpfu.ru/?p_id=107823

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	Салихова Инна Равилевна	ru_RU
dc.date.accessioned	2014-01-01T00:00:00Z	ru_RU
dc.date.available	2014-01-01T00:00:00Z	ru_RU
dc.date.issued	2014	ru_RU
dc.identifier.citation	Ziyatdinova G. Chronoamperometric estimation of cognac and brandy antioxidant capacity using MWNT modified glassy carbon electrode / G. Ziyatdinova, I. Salikhova, H. Budnikov // Talanta. – 2014. – V.125. – P.378-384.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=107823	ru_RU
dc.description.abstract	TALANTA	ru_RU
dc.description.abstract	Cognac and brandy components are electrochemically oxidized on multi-walled carbon nanotube modified glassy carbon electrode at 0.44 and 0.59 V in 0.1 М phosphate buffer solution pH 3.0. Voltammetric behavior of the main antioxidant constituents of cognac (ellagic and gallic acids, syringaldehyde, coniferaldehyde, vanillin, 5-hydroxymethylfurfural and furfural) has been investigated. The peak at the less positive potential of cognacs is caused by oxidation of gallic acid as well as syring- and coniferaldehydes. The second peak corresponds to ellagic acid oxidation. One-step chronoamperometry at 0.59 V for 75 s has been applied for the cognac and brandy antioxidant capacity (AOC) evaluation. Ellagic acid being the main antioxidant of cognac has been used as reference substance. The chronoamperometric response of ellagic acid is linear in the range of 0.66?52.8 ?M with the limits of detection and quantification of 0.19 and 0.63 ?M, respectively. AOC in ellagic acid equivalents per 100 mL	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Chronoamperometry	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	Chemically modified electrodes	ru_RU
dc.subject	Antioxidant capacity	ru_RU
dc.subject	Phenolic antioxidants	ru_RU
dc.subject	Cognac and brandy	ru_RU
dc.title	Chronoamperometric estimation of cognac and brandy antioxidant capacity using MWNT modified glassy carbon electrode	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU