КФУ. Карточка публикации. Selective voltammetric determination of α-lipoic acid on the electrode modified with SnO2 nanoparticles and cetyltriphenylphosphonium bromide

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SELECTIVE VOLTAMMETRIC DETERMINATION OF α-LIPOIC ACID ON THE ELECTRODE MODIFIED WITH SNO2 NANOPARTICLES AND CETYLTRIPHENYLPHOSPHONIUM BROMIDE

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2019

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Воробьев Вячеслав Валерьевич, автор

Зиятдинова Гузель Камилевна, автор

Осин Юрий Николаевич, автор

Авторы, студенты КФУ

Антонова Татьяна Сергеевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova, G. Selective voltammetric determination of α-lipoic acid on the electrode modified with SnO2 nanoparticles and cetyltriphenylphosphonium bromide / G. Ziyatdinova, T. Antonova, V. Vorobev, Y. Osin, H. Budnikov // Monatsh. Chem. – 2019. – V. 150. – № 3. – P. 401-410.

Аннотация

Sensitive voltammetric method for α-lipoic acid determination based on glassy carbon electrode (GCE) modified with SnO2 nanoparticles (SnO2 NP) dispersion in cetyltriphenylphosphonium bromide (CTPPB) (SnO2 NP-CTPPB/GCE) has been developed. The comparison to other surface active compounds as dispersive agents has been performed. The electrodes surface has been characterized by scanning electron microscopy, electrochemical impedance spectroscopy, cyclic voltammetry, and chronoamperometry. Statistically significant decrease of charge transfer resistance (10.8 ? 0.4 kΩ vs. 181 ? 7 kΩ for GCE and 71 ? 3 kΩ for SnO2 NP-H2O/GCE) and higher effective surface area (13.7 ? 0.2 mm2 vs. 8.2 ? 0.3 mm2 for GCE and 12.1 ? 0.2 mm2 for SnO2 NP-H2O/GCE) has been obtained for SnO2 NP-CTPPB/GCE. α-Lipoic acid oxidation on SnO2 NP-CTPPB/GCE is a two-electron diffusion-controlled pH independent process leading to β-lipoic acid formation. Under conditions of differential pulse voltammetry in Britton–Robinson buffer pH 4.5, the linear dynamic ranges are 0.50–50 and 50–400 μmol dm−3 of α-lipoic acid with the limits of detection and quantification of 0.13 and 0.43 μmol dm−3, respectively. The method developed has been successfully applied for the pharmaceutical dosage form analysis.

Ключевые слова

Voltammetry, chemically modified electrodes, metal oxide nanoparticles, surface active compounds, α-lipoic acid

Название журнала

MONATSHEFTE FUR CHEMIE

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85061341323&doi=10.1007%2fs00706-018-2341-5&partnerID=40&md5=faac5f1d57fce4a24b3f257052e0690e

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https://repository.kpfu.ru/?p_id=196531

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	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Осин Юрий Николаевич	ru_RU
dc.contributor.author	Антонова Татьяна Сергеевна	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. Selective voltammetric determination of α-lipoic acid on the electrode modified with SnO2 nanoparticles and cetyltriphenylphosphonium bromide / G. Ziyatdinova, T. Antonova, V. Vorobev, Y. Osin, H. Budnikov // Monatsh. Chem. – 2019. – V. 150. – № 3. – P. 401-410.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=196531	ru_RU
dc.description.abstract	MONATSHEFTE FUR CHEMIE	ru_RU
dc.description.abstract	Sensitive voltammetric method for α-lipoic acid determination based on glassy carbon electrode (GCE) modified with SnO2 nanoparticles (SnO2 NP) dispersion in cetyltriphenylphosphonium bromide (CTPPB) (SnO2 NP-CTPPB/GCE) has been developed. The comparison to other surface active compounds as dispersive agents has been performed. The electrodes surface has been characterized by scanning electron microscopy, electrochemical impedance spectroscopy, cyclic voltammetry, and chronoamperometry. Statistically significant decrease of charge transfer resistance (10.8 ? 0.4 kΩ vs. 181 ? 7 kΩ for GCE and 71 ? 3 kΩ for SnO2 NP-H2O/GCE) and higher effective surface area (13.7 ? 0.2 mm2 vs. 8.2 ? 0.3 mm2 for GCE and 12.1 ? 0.2 mm2 for SnO2 NP-H2O/GCE) has been obtained for SnO2 NP-CTPPB/GCE. α-Lipoic acid oxidation on SnO2 NP-CTPPB/GCE is a two-electron diffusion-controlled pH independent process leading to β-lipoic acid formation. Under conditions of differential pulse voltammetry in Britton–Robinson buffer pH 4.5, the linear dynamic ranges are 0.50–50 and 50–400 μmol dm−3 of α-lipoic acid with the limits of detection and quantification of 0.13 and 0.43 μmol dm−3, respectively. The method developed has been successfully applied for the pharmaceutical dosage form analysis.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	metal oxide nanoparticles	ru_RU
dc.subject	surface active compounds	ru_RU
dc.subject	α-lipoic acid	ru_RU
dc.title	Selective voltammetric determination of α-lipoic acid on the electrode modified with SnO2 nanoparticles and cetyltriphenylphosphonium bromide	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU