| Форма представления | Статьи в зарубежных журналах и сборниках |
| Год публикации | 2015 |
| Язык | английский |
|
Будников Герман Константинович, автор
Зиятдинова Гузель Камилевна, автор
|
|
Захарова Светлана Петровна, автор
|
| Библиографическое описание на языке оригинала |
Ziyatdinova G.K. Reactions of phenolic antioxidants with electrogenerated superoxide anion radical and their analytical application / G.K. Ziyatdinova, S.P. Zakharova, H.C. Budnikov //UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI. - 2015. - V. 157. - No. 2. - P. 129-142. |
| Аннотация |
Parameters of oxygen electroreduction on glassy carbon electrode modified with multi-walled carbon nanotubes were found. Increase in the oxygen reduction currents and system reversibility was observed compared to unmodified electrode, which allows to use cyclic voltammetry for investigation of reactions of electrogenerated superoxide anion radical with antioxidants. It was revealed that phenolic antioxidants act as proton donors (i.e., as Brønsted acids) and their interaction with superoxide anion radical follows ECE mechanism. The rate constants were relatively similar, varied in the range of 6.8?104 ÷ 11.0?10(4) L/mol?s, and thereby reflected the slight influence of the structure of phenolic antioxidants, in particular the number and position of hydroxyl groups, as well as the steric effects of substituents. |
| Ключевые слова |
Voltammetry, chemically modified electrodes, superoxide anion radical, phenolic anti-oxidants, antioxidant capacity, medicinal herbs. |
| Название журнала |
UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI
|
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=174375 |
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 |
Захарова Светлана Петровна |
ru_RU |
| dc.date.accessioned |
2015-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2015-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2015 |
ru_RU |
| dc.identifier.citation |
Ziyatdinova G.K. Reactions of phenolic antioxidants with electrogenerated superoxide anion radical and their analytical application / G.K. Ziyatdinova, S.P. Zakharova, H.C. Budnikov //UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI. - 2015. - V. 157. - No. 2. - P. 129-142. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=174375 |
ru_RU |
| dc.description.abstract |
UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI |
ru_RU |
| dc.description.abstract |
Parameters of oxygen electroreduction on glassy carbon electrode modified with multi-walled carbon nanotubes were found. Increase in the oxygen reduction currents and system reversibility was observed compared to unmodified electrode, which allows to use cyclic voltammetry for investigation of reactions of electrogenerated superoxide anion radical with antioxidants. It was revealed that phenolic antioxidants act as proton donors (i.e., as Brønsted acids) and their interaction with superoxide anion radical follows ECE mechanism. The rate constants were relatively similar, varied in the range of 6.8?104 ÷ 11.0?10(4) L/mol?s, and thereby reflected the slight influence of the structure of phenolic antioxidants, in particular the number and position of hydroxyl groups, as well as the steric effects of substituents. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
Voltammetry |
ru_RU |
| dc.subject |
chemically modified electrodes |
ru_RU |
| dc.subject |
superoxide anion radical |
ru_RU |
| dc.subject |
phenolic anti-oxidants |
ru_RU |
| dc.subject |
antioxidant capacity |
ru_RU |
| dc.subject |
medicinal herbs. |
ru_RU |
| dc.title |
Reactions of phenolic antioxidants with electrogenerated superoxide anion radical and their analytical application |
ru_RU |
| dc.type |
Статьи в зарубежных журналах и сборниках |
ru_RU |
|
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