KFU. Card publication. 2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl as a novel modifier of the electrode for the voltammetric evaluation of antioxidant activity

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2,2-DI(4-TERT-OCTYLPHENYL)-1-PICRYLHYDRAZYL AS A NOVEL MODIFIER OF THE ELECTRODE FOR THE VOLTAMMETRIC EVALUATION OF ANTIOXIDANT ACTIVITY

Form of presentation

Articles in international journals and collections

Year of publication

2018

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Authors, employees of KFU

Budnikov German Konstantinovich, author

Ziyatdinova Guzel Kamilevna, author

Authors, students KFU

Snegureva Yuliya Vladimirovna, author

Bibliographic description in the original language

Ziyatdinova G.K. 2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl as a novel modifier of the electrode for the voltammetric evaluation of antioxidant activity / G.K. Ziyatdinova, Yu.V. Snegureva, H.C. Budnikov // Uchenye zapiski Kazanskogo Universiteta – Seriya Estestvennye nauki. – 2018. – V. 160. – � 1. – P. 17-31.

Annotation

2,2-di(4-tert-octylphenyl)-1-picrylhydrazyl (DTOPPH*) immobilized on the electrode surface has been proposed as a reagent for the evaluation of antioxidant activity (AOA). The electroreduction parameters of DTOPPH* immobilized on glassy carbon electrode (GCE) modified with carbon nanotubes, cerium and tin dioxide nanoparticles dispersed in surfactants have been studied. The best characteristics have been obtained on the electrode modified with cerium dioxide nanoparticles and cetylpyridium bromide (CPB). The reduction currents of the immobilized DTOPPH* are decreased in the presence of the phenolic antioxidants allowing application of the electrode created for their AOA evaluation. �C50 parameter for tannin, quercetin, catechin and ferulic acid has been found and compared with that one based on the reaction with 2,2-diphenyl-1-picrylhydrazyl under the same conditions. The approach developed has been applied for the evaluation of AOA in juices and nectars.

Keywords

Voltammetry, chemically modified electrodes, CeO2 nanoparticles, stable radicals, antioxidant activity, food analysis

The name of the journal

UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI

URL

https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=C1YEVF6H15sjMIVd2Dx&page=1&doc=5

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

https://repository.kpfu.ru/eng/?p_id=185058&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	Snegureva Yuliya Vladimirovna	ru_RU
dc.date.accessioned	2018-01-01T00:00:00Z	ru_RU
dc.date.available	2018-01-01T00:00:00Z	ru_RU
dc.date.issued	2018	ru_RU
dc.identifier.citation	Ziyatdinova G.K. 2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl as a novel modifier of the electrode for the voltammetric evaluation of antioxidant activity / G.K. Ziyatdinova, Yu.V. Snegureva, H.C. Budnikov // Uchenye zapiski Kazanskogo Universiteta – Seriya Estestvennye nauki. – 2018. – V. 160. – � 1. – P. 17-31.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=185058&p_lang=2	ru_RU
dc.description.abstract	UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI	ru_RU
dc.description.abstract	2,2-di(4-tert-octylphenyl)-1-picrylhydrazyl (DTOPPH) immobilized on the electrode surface has been proposed as a reagent for the evaluation of antioxidant activity (AOA). The electroreduction parameters of DTOPPH immobilized on glassy carbon electrode (GCE) modified with carbon nanotubes, cerium and tin dioxide nanoparticles dispersed in surfactants have been studied. The best characteristics have been obtained on the electrode modified with cerium dioxide nanoparticles and cetylpyridium bromide (CPB). The reduction currents of the immobilized DTOPPH* are decreased in the presence of the phenolic antioxidants allowing application of the electrode created for their AOA evaluation. �C50 parameter for tannin, quercetin, catechin and ferulic acid has been found and compared with that one based on the reaction with 2,2-diphenyl-1-picrylhydrazyl under the same conditions. The approach developed has been applied for the evaluation of AOA in juices and nectars.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	CeO2 nanoparticles	ru_RU
dc.subject	stable radicals	ru_RU
dc.subject	antioxidant activity	ru_RU
dc.subject	food analysis	ru_RU
dc.title	2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl as a novel modifier of the electrode for the voltammetric evaluation of antioxidant activity	ru_RU
dc.type	Articles in international journals and collections	ru_RU