KFU. Card publication. Electrochemical oxidation of sulfur-containing amino acids on an electrode modified with multi-walled carbon nanotubes

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FEDERAL UNIVERSITY

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ELECTROCHEMICAL OXIDATION OF SULFUR-CONTAINING AMINO ACIDS ON AN ELECTRODE MODIFIED WITH MULTI-WALLED CARBON NANOTUBES

Form of presentation

Articles in international journals and collections

Year of publication

2009

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Authors, employees of KFU

Budnikov German Konstantinovich, author

Gilmutdinov Albert Kharisovich, author

Ziyatdinova Guzel Kamilevna, author

Authors, postgraduates KFU

Morozov Mikhail Valerevich, postgraduate kfu

Authors, students KFU

Grigoreva Lidiya Vladimirovna, author

Bibliographic description in the original language

Ziyatdinova, G. Electrochemical oxidation of sulfur-containing amino acids on an electrode modified with multi-walled carbon nanotubes / G. Ziyatdinova, L. Grigor'eva, M. Morozov, A. Gilmutdinov, H. Budnikov // Microchim. Acta. - 2009. - V. 165. - No. 3-4.- P. 353-359.

Annotation

MWNT-modified electrodes are introduced for the voltammetric determination of sulfur-containing amino acids. The morphology of the electrode surface has been characterized by atomic force microscopy. The MWNT layer consists of deeply intertwined vermicular structures with the average diameter of 25 nm. Cysteine, glutathione and methionine are oxidized on the electrode while only cysteine gives signals on the glassy carbon (GC) electrode. The application of such electrodes leads to a decreased overpotential and increase of oxidation currents for cysteine in comparison with a bare GC electrode. The schemes of oxidation are proposed. A decrease of the lower limit of determination and an enlargement of the analytical range for antioxidants were obtained. A simple, fast and accurate procedure for the voltammetric determination of methionine in pharmaceuticals has been developed and can be recommended for quality control purposes.

Keywords

Anodic voltammetry, sulfur-containing amino acids, carbon nanotubes, chemically modified electrodes, pharmaceutical analysis

The name of the journal

Microchimica Acta

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-67349253473&partnerID=40&md5=564f62463888775f9131d89fdf5f44bc

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

https://repository.kpfu.ru/eng/?p_id=134866&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Budnikov German Konstantinovich	ru_RU
dc.contributor.author	Gilmutdinov Albert Kharisovich	ru_RU
dc.contributor.author	Ziyatdinova Guzel Kamilevna	ru_RU
dc.contributor.author	Grigoreva Lidiya Vladimirovna	ru_RU
dc.contributor.author	Morozov Mikhail Valerevich	ru_RU
dc.date.accessioned	2009-01-01T00:00:00Z	ru_RU
dc.date.available	2009-01-01T00:00:00Z	ru_RU
dc.date.issued	2009	ru_RU
dc.identifier.citation	Ziyatdinova, G. Electrochemical oxidation of sulfur-containing amino acids on an electrode modified with multi-walled carbon nanotubes / G. Ziyatdinova, L. Grigor'eva, M. Morozov, A. Gilmutdinov, H. Budnikov // Microchim. Acta. - 2009. - V. 165. - No. 3-4.- P. 353-359.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=134866&p_lang=2	ru_RU
dc.description.abstract	Microchimica Acta	ru_RU
dc.description.abstract	MWNT-modified electrodes are introduced for the voltammetric determination of sulfur-containing amino acids. The morphology of the electrode surface has been characterized by atomic force microscopy. The MWNT layer consists of deeply intertwined vermicular structures with the average diameter of 25 nm. Cysteine, glutathione and methionine are oxidized on the electrode while only cysteine gives signals on the glassy carbon (GC) electrode. The application of such electrodes leads to a decreased overpotential and increase of oxidation currents for cysteine in comparison with a bare GC electrode. The schemes of oxidation are proposed. A decrease of the lower limit of determination and an enlargement of the analytical range for antioxidants were obtained. A simple, fast and accurate procedure for the voltammetric determination of methionine in pharmaceuticals has been developed and can be recommended for quality control purposes.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Anodic voltammetry	ru_RU
dc.subject	sulfur-containing amino acids	ru_RU
dc.subject	carbon nanotubes	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	pharmaceutical analysis	ru_RU
dc.title	Electrochemical oxidation of sulfur-containing amino acids on an electrode modified with multi-walled carbon nanotubes	ru_RU
dc.type	Articles in international journals and collections	ru_RU