КФУ. Карточка публикации. Voltammetric determination of α-tocopherol in the presence of surfactants

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VOLTAMMETRIC DETERMINATION OF α-TOCOPHEROL IN THE PRESENCE OF SURFACTANTS

Форма представления

Статьи в российских журналах и сборниках

Год публикации

2012

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Зиганшина Эндже Ришатовна, автор

Зиятдинова Гузель Камилевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova, G.K. Voltammetric determination of α-tocopherol in the presence of surfactants / G.K. Ziyatdinova, E.R. Giniyatova, G.K. Budnikov // J. Anal. Chem. - 2012. - V. 67. - No. 5. - P. 467-473.

Аннотация

As established, α-tocopherol is electrochemically active on glassy carbon electrode in the available range of anodic potentials in acetonitrile and its aqueous mixtures. However, an increase in the water percentage up to 50% and beyond leads to a substantial decrease and then the total disappearance of the analytical signal. A scheme of electrode reaction responsible for the signal formation is proposed. The effect of surfactants on the oxidation of α-tocopherol in aqueous acetonitrile is estimated. As found, surfactants (N-dodecylpyridinium bromide, Triton X-100 and N-cetylpyridinium bromide) enhance the current of α-tocopherol oxidation. The surfactants reduce the detection limit and extend the analytical range. Analytical methods for the voltammetric quantification of α-tocopherol in drugs in the presence of surfactants are elaborated and may be recommended for the control of pharmaceuticals.

Ключевые слова

Surfactants, voltammetry, αtocopherol, glassy carbon electrode

Название журнала

JOURNAL OF ANALYTICAL CHEMISTRY

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84861411754&partnerID=40&md5=55f097935c087b4b94ca59d27feb604b

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https://repository.kpfu.ru/?p_id=134858

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Будников Герман Константинович	ru_RU
dc.contributor.author	Зиганшина Эндже Ришатовна	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.date.accessioned	2012-01-01T00:00:00Z	ru_RU
dc.date.available	2012-01-01T00:00:00Z	ru_RU
dc.date.issued	2012	ru_RU
dc.identifier.citation	Ziyatdinova, G.K. Voltammetric determination of α-tocopherol in the presence of surfactants / G.K. Ziyatdinova, E.R. Giniyatova, G.K. Budnikov // J. Anal. Chem. - 2012. - V. 67. - No. 5. - P. 467-473.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=134858	ru_RU
dc.description.abstract	JOURNAL OF ANALYTICAL CHEMISTRY	ru_RU
dc.description.abstract	As established, α-tocopherol is electrochemically active on glassy carbon electrode in the available range of anodic potentials in acetonitrile and its aqueous mixtures. However, an increase in the water percentage up to 50% and beyond leads to a substantial decrease and then the total disappearance of the analytical signal. A scheme of electrode reaction responsible for the signal formation is proposed. The effect of surfactants on the oxidation of α-tocopherol in aqueous acetonitrile is estimated. As found, surfactants (N-dodecylpyridinium bromide, Triton X-100 and N-cetylpyridinium bromide) enhance the current of α-tocopherol oxidation. The surfactants reduce the detection limit and extend the analytical range. Analytical methods for the voltammetric quantification of α-tocopherol in drugs in the presence of surfactants are elaborated and may be recommended for the control of pharmaceuticals.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Surfactants	ru_RU
dc.subject	voltammetry	ru_RU
dc.subject	αtocopherol	ru_RU
dc.subject	glassy carbon electrode	ru_RU
dc.title	Voltammetric determination of α-tocopherol in the presence of surfactants	ru_RU
dc.type	Статьи в российских журналах и сборниках	ru_RU