КФУ. Карточка публикации. Reactions of superoxide anion radical with antioxidants and their use in voltammetry

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ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ

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REACTIONS OF SUPEROXIDE ANION RADICAL WITH ANTIOXIDANTS AND THEIR USE IN VOLTAMMETRY

Форма представления

Статьи в российских журналах и сборниках

Год публикации

2005

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Зиятдинова Гузель Камилевна, автор

Авторы, студенты КФУ

Гильметдинова Дильбар Миннекасимовна, автор

Библиографическое описание на языке оригинала

Ziyatdinova G.K., Gil'metdinova D.M., Budnikov G.K. Reactions of superoxide anion radical with antioxidants and their use in voltammetry // J. Anal. Chem. - 2005. - V. 60. - No. 1. - P. 49-52.

Аннотация

Kinetic parameters were calculated for the electrochemical reduction of oxygen at a glassy-carbon electrode with the generation of superoxide radical anions in a 0.05 M solution of (C2H5)4NI in dimethylformamide in the presence of fat-soluble antioxidants, retinol and α-tocopherol. A procedure based on the protonation of the radical anion with antioxidant molecules is proposed for the voltammetric determination of antioxidants to determine milligram amounts of retinol and α-tocopherol in model solutions (RSD = 1?2%). The calibration graphs for retinol and α-tocopherol are linear in the concentration ranges 9.7×10(?5)?2.3×10(?3) and 6.2×10(?4)?3.1×10(?3) M, respectively. The detection limits for retinol and α-tocopherol are 4.8×10(?5) and 4.1×10(?4) M, respectively. The procedure was applied to the determination of the active component (retinol and α-tocopherol) in pharmaceuticals.

Ключевые слова

Superoxide anion-radical, voltammetry, retinol, α-tocopherol, pharmaceutical analysis

Название журнала

JOURNAL OF ANALYTICAL CHEMISTRY

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-14944356168&partnerID=40&md5=b0bdd142941b97fe253a49c27134d8fa

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https://repository.kpfu.ru/?p_id=134873

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	Гильметдинова Дильбар Миннекасимовна	ru_RU
dc.date.accessioned	2005-01-01T00:00:00Z	ru_RU
dc.date.available	2005-01-01T00:00:00Z	ru_RU
dc.date.issued	2005	ru_RU
dc.identifier.citation	Ziyatdinova G.K., Gil'metdinova D.M., Budnikov G.K. Reactions of superoxide anion radical with antioxidants and their use in voltammetry // J. Anal. Chem. - 2005. - V. 60. - No. 1. - P. 49-52.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=134873	ru_RU
dc.description.abstract	JOURNAL OF ANALYTICAL CHEMISTRY	ru_RU
dc.description.abstract	Kinetic parameters were calculated for the electrochemical reduction of oxygen at a glassy-carbon electrode with the generation of superoxide radical anions in a 0.05 M solution of (C2H5)4NI in dimethylformamide in the presence of fat-soluble antioxidants, retinol and α-tocopherol. A procedure based on the protonation of the radical anion with antioxidant molecules is proposed for the voltammetric determination of antioxidants to determine milligram amounts of retinol and α-tocopherol in model solutions (RSD = 1?2%). The calibration graphs for retinol and α-tocopherol are linear in the concentration ranges 9.7×10(?5)?2.3×10(?3) and 6.2×10(?4)?3.1×10(?3) M, respectively. The detection limits for retinol and α-tocopherol are 4.8×10(?5) and 4.1×10(?4) M, respectively. The procedure was applied to the determination of the active component (retinol and α-tocopherol) in pharmaceuticals.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Superoxide anion-radical	ru_RU
dc.subject	voltammetry	ru_RU
dc.subject	retinol	ru_RU
dc.subject	α-tocopherol	ru_RU
dc.subject	pharmaceutical analysis	ru_RU
dc.title	Reactions of superoxide anion radical with antioxidants and their use in voltammetry	ru_RU
dc.type	Статьи в российских журналах и сборниках	ru_RU