| Форма представления | Статьи в зарубежных журналах и сборниках |
| Год публикации | 2018 |
| Язык | английский |
|
Будников Герман Константинович, автор
Гусс Екатерина Валерьевна, автор
Зиятдинова Гузель Камилевна, автор
|
|
Гусс Екатерина Валерьевна, автор
|
|
Морозова Евгения Васильевна, автор
|
| Библиографическое описание на языке оригинала |
Ziyatdinova, G. Chronocoulometric method for the evaluation of antioxidant capacity of medicinal plant tinctures / G. Ziyatdinova, E. Kozlova, E. Morozova, H. Budnikov // Analytical Methods. - 2018. - V. 10. - № 41. - P. 4995-5003. |
| Аннотация |
The oxidation potentials of medicinal plant tinctures have been studied on glassy carbon electrode, modified layer-by-layer with multi-walled carbon nanotubes and poly(gallic acid) (PGA/MWNT/GCE) in phosphate buffer solution of pH 7.4. PGA-modified electrode has shown significantly higher sensitivity towards antioxidants in tinctures in comparison to bare GCE and MWNT/GCE. A novel approach for the evaluation of antioxidant capacity of medicinal plant tinctures using one-step chronocoulometry at 1.0 V has been developed. A steady state is achieved at 100 s of electrolysis. The antioxidant capacity has been expressed in quercetin equivalents per 1 mL of tincture. Linear dynamic ranges of 0.010?0.25 and 0.25?250 μmol L−1 quercetin with the limits of detection and determination of 2.9 and 9.8 nmol L−1, respectively, have been obtained. Eleven medicinal plant tinctures have been investigated. |
| Ключевые слова |
Chronocuolometry, chemically modified electrodes, poly(gallic acid), antioxidant capacity, medicinal plants |
| Название журнала |
Analytical Methods
|
| URL |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055631906&doi=10.1039%2fc8ay01907j&partnerID=40&md5=3dc63c5f08a622780420c1d641e73b60 |
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=189735 |
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Будников Герман Константинович |
ru_RU |
| dc.contributor.author |
Гусс Екатерина Валерьевна |
ru_RU |
| dc.contributor.author |
Зиятдинова Гузель Камилевна |
ru_RU |
| dc.contributor.author |
Морозова Евгения Васильевна |
ru_RU |
| dc.contributor.author |
Гусс Екатерина Валерьевна |
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. Chronocoulometric method for the evaluation of antioxidant capacity of medicinal plant tinctures / G. Ziyatdinova, E. Kozlova, E. Morozova, H. Budnikov // Analytical Methods. - 2018. - V. 10. - № 41. - P. 4995-5003. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=189735 |
ru_RU |
| dc.description.abstract |
Analytical Methods |
ru_RU |
| dc.description.abstract |
The oxidation potentials of medicinal plant tinctures have been studied on glassy carbon electrode, modified layer-by-layer with multi-walled carbon nanotubes and poly(gallic acid) (PGA/MWNT/GCE) in phosphate buffer solution of pH 7.4. PGA-modified electrode has shown significantly higher sensitivity towards antioxidants in tinctures in comparison to bare GCE and MWNT/GCE. A novel approach for the evaluation of antioxidant capacity of medicinal plant tinctures using one-step chronocoulometry at 1.0 V has been developed. A steady state is achieved at 100 s of electrolysis. The antioxidant capacity has been expressed in quercetin equivalents per 1 mL of tincture. Linear dynamic ranges of 0.010?0.25 and 0.25?250 μmol L−1 quercetin with the limits of detection and determination of 2.9 and 9.8 nmol L−1, respectively, have been obtained. Eleven medicinal plant tinctures have been investigated. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
Chronocuolometry |
ru_RU |
| dc.subject |
chemically modified electrodes |
ru_RU |
| dc.subject |
poly(gallic acid) |
ru_RU |
| dc.subject |
antioxidant capacity |
ru_RU |
| dc.subject |
medicinal plants |
ru_RU |
| dc.title |
Chronocoulometric method for the evaluation of antioxidant capacity of medicinal plant tinctures |
ru_RU |
| dc.type |
Статьи в зарубежных журналах и сборниках |
ru_RU |
|
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