KFU. Card publication. Galvanostatic coulometry in the analysis of natural polyphenols and its use in pharmacy

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FEDERAL UNIVERSITY

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GALVANOSTATIC COULOMETRY IN THE ANALYSIS OF NATURAL POLYPHENOLS AND ITS USE IN PHARMACY

Form of presentation

Articles in Russian journals and collections

Year of publication

2010

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Authors, employees of KFU

Budnikov German Konstantinovich, author

Ziyatdinova Guzel Kamilevna, author

Authors, postgraduates KFU

Nizamova Alfiya Maratovna, postgraduate kfu

Bibliographic description in the original language

Ziyatdinova G.K. Galvanostatic coulometry in the analysis of natural polyphenols and its use in pharmacy / G.K. Ziyatdinova, A.M. Nizamova, G.K. Budnikov / J. Anal. Chem. - 2010. - V. 65. - No. 11. - P. 1176-1180.

Annotation

Stoichometric coefficients are found for the reactions of electrogenerated halogens and hexacyanoferrate(III) ions with natural polyphenols, namely, rutin, quercetin, and dihydroquercetin, and also with ascorbic acid. The number of electrons participating in the reactions with hexacyanoferrate(III) matches the number of hydroxyl groups in the analyte molecules, which is reflected by the respective reaction schemes. In the determination of the specified compounds in model solutions, the value of RSD was 0.4?6%. A procedure for the direct quantification of polyphenols in pharmaceuticals by the reaction with hexacyanoferrate is proposed; it is proved applicable for the quality control of medications; RSD does not exceed 7%. The variation of titrants, i.e., iodine and hexacyanoferrate, makes possible the determination of phenols in the presence of ascorbic acid.

Keywords

Galvanostatic coulometry, polyphenols

The name of the journal

JOURNAL OF ANALYTICAL CHEMISTRY

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-78049368017&partnerID=40&md5=b3b069b972f4652509bca9500f762779

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

https://repository.kpfu.ru/eng/?p_id=134863&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	Nizamova Alfiya Maratovna	ru_RU
dc.date.accessioned	2010-01-01T00:00:00Z	ru_RU
dc.date.available	2010-01-01T00:00:00Z	ru_RU
dc.date.issued	2010	ru_RU
dc.identifier.citation	Ziyatdinova G.K. Galvanostatic coulometry in the analysis of natural polyphenols and its use in pharmacy / G.K. Ziyatdinova, A.M. Nizamova, G.K. Budnikov / J. Anal. Chem. - 2010. - V. 65. - No. 11. - P. 1176-1180.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=134863&p_lang=2	ru_RU
dc.description.abstract	JOURNAL OF ANALYTICAL CHEMISTRY	ru_RU
dc.description.abstract	Stoichometric coefficients are found for the reactions of electrogenerated halogens and hexacyanoferrate(III) ions with natural polyphenols, namely, rutin, quercetin, and dihydroquercetin, and also with ascorbic acid. The number of electrons participating in the reactions with hexacyanoferrate(III) matches the number of hydroxyl groups in the analyte molecules, which is reflected by the respective reaction schemes. In the determination of the specified compounds in model solutions, the value of RSD was 0.4?6%. A procedure for the direct quantification of polyphenols in pharmaceuticals by the reaction with hexacyanoferrate is proposed; it is proved applicable for the quality control of medications; RSD does not exceed 7%. The variation of titrants, i.e., iodine and hexacyanoferrate, makes possible the determination of phenols in the presence of ascorbic acid.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Galvanostatic coulometry	ru_RU
dc.subject	polyphenols	ru_RU
dc.title	Galvanostatic coulometry in the analysis of natural polyphenols and its use in pharmacy	ru_RU
dc.type	Articles in Russian journals and collections	ru_RU