КФУ. Карточка публикации. Simultaneous voltammetric determination of gallic and ellagic acids in cognac and brandy using electrode modified with functionalized SWNT and poly(pyrocatechol violet)

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SIMULTANEOUS VOLTAMMETRIC DETERMINATION OF GALLIC AND ELLAGIC ACIDS IN COGNAC AND BRANDY USING ELECTRODE MODIFIED WITH FUNCTIONALIZED SWNT AND POLY(PYROCATECHOL VIOLET)

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2019

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Воробьев Вячеслав Валерьевич, автор

Гусс Екатерина Валерьевна, автор

Давлетшин Рустам Рифхатович, автор

Зиятдинова Гузель Камилевна, автор

Осин Юрий Николаевич, автор

Авторы, студенты КФУ

Морозова Евгения Васильевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova, G. Simultaneous voltammetric determination of gallic and ellagic acids in cognac and brandy using electrode modified with functionalized SWNT and poly(pyrocatechol violet) / G. Ziyatdinova, E. Guss, E. Morozova, H. Budnikov, R. Davletshin, V. Vorobev, Yu. Osin // Food Anal. Methods. – 2019. – V. 12. – № 10. – P. 2250-2261.

Аннотация

Voltammetric approach for the simultaneous determination of gallic and ellagic acids using glassy carbon electrode modified with polyaminobenzene sulfonic acid functionalized single-walled carbon nanotubes (f-SWNT) and poly(pyrocatechol violet) (polyPCV/f-SWNT/GCE) has been developed. The electrochemical PCV polymerization has been performed in potentiodynamic mode. The optimization of electrolysis conditions (supporting electrolyte, PCV concentration, polarization window, number of cycles, and potential scan rate) has been performed. The best voltammetric characteristics of gallic and ellagic acids oxidation have been registered on the poly(PCV)-modified electrode obtained by tenfold potential scanning from − 0.2 to 1.1 V at 50 mV s−1 using 50 μmol L−1 PCV in 0.1 mol L−1 H2SO4. The electrode is characterized by scanning electron microscopy (SEM), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The statistically significant changes in the effective surface area of modified electrodes (38.9 ? 0.6 mm2 for f-SWNT/GCE and 49.0 ? 0.2 mm2 for polyPCV/f-SWNT/GCE vs. 8.2 ? 0.3 mm2 for GCE) have been confirmed. EIS data have shown 2.6-fold decrease of the charge transfer resistance in comparison to GCE. Under conditions of differential pulse voltammetry (DPV), the analytical ranges of 0.75–10 and 10–100 μmol L−1 for gallic acid and 0.75–7.5 and 7.5–100 μmol L−1 for ellagic acid have been obtained. The limits of detection (LOD) and quantification (LOQ) of 0.12 and 0.41 μmol L−1 for gallic acid and 0.11 and 0.37 μmol L−1 for ellagic acid have been achieved. The approach developed has been applied for the simultaneous determination of the gallic and ellagic acids in cognac and brandy. The results obtained agree well to chromatography data.

Ключевые слова

Voltammetry, modified electrodes, electropolymerization, carbon nanotubes, phenolic acids, food analysis

Название журнала

Food Analytical Methods

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068913192&doi=10.1007%2fs12161-019-01585-6&partnerID=40&md5=7fc61282c15c95a4ca04af0da698d4a9

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https://repository.kpfu.ru/?p_id=205729

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Будников Герман Константинович	ru_RU
dc.contributor.author	Воробьев Вячеслав Валерьевич	ru_RU
dc.contributor.author	Гусс Екатерина Валерьевна	ru_RU
dc.contributor.author	Давлетшин Рустам Рифхатович	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Осин Юрий Николаевич	ru_RU
dc.contributor.author	Морозова Евгения Васильевна	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. Simultaneous voltammetric determination of gallic and ellagic acids in cognac and brandy using electrode modified with functionalized SWNT and poly(pyrocatechol violet) / G. Ziyatdinova, E. Guss, E. Morozova, H. Budnikov, R. Davletshin, V. Vorobev, Yu. Osin // Food Anal. Methods. – 2019. – V. 12. – № 10. – P. 2250-2261.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=205729	ru_RU
dc.description.abstract	Food Analytical Methods	ru_RU
dc.description.abstract	Voltammetric approach for the simultaneous determination of gallic and ellagic acids using glassy carbon electrode modified with polyaminobenzene sulfonic acid functionalized single-walled carbon nanotubes (f-SWNT) and poly(pyrocatechol violet) (polyPCV/f-SWNT/GCE) has been developed. The electrochemical PCV polymerization has been performed in potentiodynamic mode. The optimization of electrolysis conditions (supporting electrolyte, PCV concentration, polarization window, number of cycles, and potential scan rate) has been performed. The best voltammetric characteristics of gallic and ellagic acids oxidation have been registered on the poly(PCV)-modified electrode obtained by tenfold potential scanning from − 0.2 to 1.1 V at 50 mV s−1 using 50 μmol L−1 PCV in 0.1 mol L−1 H2SO4. The electrode is characterized by scanning electron microscopy (SEM), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). The statistically significant changes in the effective surface area of modified electrodes (38.9 ? 0.6 mm2 for f-SWNT/GCE and 49.0 ? 0.2 mm2 for polyPCV/f-SWNT/GCE vs. 8.2 ? 0.3 mm2 for GCE) have been confirmed. EIS data have shown 2.6-fold decrease of the charge transfer resistance in comparison to GCE. Under conditions of differential pulse voltammetry (DPV), the analytical ranges of 0.75–10 and 10–100 μmol L−1 for gallic acid and 0.75–7.5 and 7.5–100 μmol L−1 for ellagic acid have been obtained. The limits of detection (LOD) and quantification (LOQ) of 0.12 and 0.41 μmol L−1 for gallic acid and 0.11 and 0.37 μmol L−1 for ellagic acid have been achieved. The approach developed has been applied for the simultaneous determination of the gallic and ellagic acids in cognac and brandy. The results obtained agree well to chromatography data.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	modified electrodes	ru_RU
dc.subject	electropolymerization	ru_RU
dc.subject	carbon nanotubes	ru_RU
dc.subject	phenolic acids	ru_RU
dc.subject	food analysis	ru_RU
dc.title	Simultaneous voltammetric determination of gallic and ellagic acids in cognac and brandy using electrode modified with functionalized SWNT and poly(pyrocatechol violet)	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU