KFU. Card publication. Determination of some liposoluble antioxidants by coulometry and voltammetry

KAZAN
FEDERAL UNIVERSITY

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DETERMINATION OF SOME LIPOSOLUBLE ANTIOXIDANTS BY COULOMETRY AND VOLTAMMETRY

Form of presentation

Articles in Russian journals and collections

Year of publication

2004

Язык

английский

Authors, employees of KFU

Budnikov German Konstantinovich, author

Ziyatdinova Guzel Kamilevna, author

Authors, students KFU

Gilmetdinova Dilbar Minnekasimovna, author

Bibliographic description in the original language

Budnikov G.K., Ziyatdinova G.K., Gil'metdinova D.M. Determination of some liposoluble antioxidants by coulometry and voltammetry // J. Anal. Chem. - 2004. - Vol. 59. Is. 7. - P. 654-658.

Annotation

It is found that the interaction of retinol, ergocalciferol, and cholecalciferol with electrochemically generated bromine proceeds rapidly and quantitatively. The stoichiometric coefficients of the reaction are 1 : 2, 1 : 7, and 1 : 3, respectively. A coulometric determination of microgram amounts of individual liposoluble antioxidants in model solutions was performed with RSD = 1?5%. The voltammetric response of retinol and α-tocopherol was studied at a stationary platinum microelectrode in 0.1 M HClO4 and 0.1 M CH3COONa in acetonitrile. The quantification limit for α-tocopherol is 2.7×10(-4) M in 0.1 M HClO4, and the quantification limits for retinol are 4.1×10(-5) M in 0.1 M HClO4 and 2.1×10(-5) M in 0.1 M CH3COONa. A procedure for the coulometric determination of total free liposoluble antioxidants in human blood serum is proposed.

Keywords

Coulometric titration, voltammetry, liposoluble antioxidants, human serum

The name of the journal

JOURNAL OF ANALYTICAL CHEMISTRY

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-3242879790&partnerID=40&md5=d776e14813aa6da8b1d785c8ae8580a7

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=134875&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Budnikov German Konstantinovich	ru_RU
dc.contributor.author	Ziyatdinova Guzel Kamilevna	ru_RU
dc.contributor.author	Gilmetdinova Dilbar Minnekasimovna	ru_RU
dc.date.accessioned	2004-01-01T00:00:00Z	ru_RU
dc.date.available	2004-01-01T00:00:00Z	ru_RU
dc.date.issued	2004	ru_RU
dc.identifier.citation	Budnikov G.K., Ziyatdinova G.K., Gil'metdinova D.M. Determination of some liposoluble antioxidants by coulometry and voltammetry // J. Anal. Chem. - 2004. - Vol. 59. Is. 7. - P. 654-658.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=134875&p_lang=2	ru_RU
dc.description.abstract	JOURNAL OF ANALYTICAL CHEMISTRY	ru_RU
dc.description.abstract	It is found that the interaction of retinol, ergocalciferol, and cholecalciferol with electrochemically generated bromine proceeds rapidly and quantitatively. The stoichiometric coefficients of the reaction are 1 : 2, 1 : 7, and 1 : 3, respectively. A coulometric determination of microgram amounts of individual liposoluble antioxidants in model solutions was performed with RSD = 1?5%. The voltammetric response of retinol and α-tocopherol was studied at a stationary platinum microelectrode in 0.1 M HClO4 and 0.1 M CH3COONa in acetonitrile. The quantification limit for α-tocopherol is 2.7×10(-4) M in 0.1 M HClO4, and the quantification limits for retinol are 4.1×10(-5) M in 0.1 M HClO4 and 2.1×10(-5) M in 0.1 M CH3COONa. A procedure for the coulometric determination of total free liposoluble antioxidants in human blood serum is proposed.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Coulometric titration	ru_RU
dc.subject	voltammetry	ru_RU
dc.subject	liposoluble antioxidants	ru_RU
dc.subject	human serum	ru_RU
dc.title	Determination of some liposoluble antioxidants by coulometry and voltammetry	ru_RU
dc.type	Articles in Russian journals and collections	ru_RU