КФУ. Карточка публикации. Voltammetric Determinations of Thymol on an Electrode Modified by Coimmobilized Carboxylated Multiwalled Carbon Nanotubes and Surfactants

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VOLTAMMETRIC DETERMINATIONS OF THYMOL ON AN ELECTRODE MODIFIED BY COIMMOBILIZED CARBOXYLATED MULTIWALLED CARBON NANOTUBES AND SURFACTANTS

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2018

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Зиганшина Эндже Ришатовна, автор

Зиятдинова Гузель Камилевна, автор

Авторы, студенты КФУ

Ромашкина Светлана Александровна, автор

Библиографическое описание на языке оригинала

Ziyatdinova, G.K. Voltammetric determination of thymol on an electrode modified by coimmobilized carboxylated multiwalled carbon nanotubes and surfactants / G.K. Ziyatdinova, S.A. Romashkina, E.R. Ziganshina, H.C. Budnikov // J. Anal. Chem. – 2018. – V. 73. – № 1. – P. 63-70.

Аннотация

Thymol is oxidized at glassy carbon electrodes (GCEs) modified with coimmobilized carboxylated multiwalled carbon nanotubes (MWCNT-COOH) and surfactants of various nature in a Britton–Robinson buffer solution. The effect of the nature and concentration of surfactants in the composition of the electrode surface modifier on the amperometric response of thymol was evaluated. It was found that the best voltammetric characteristics are achieved in the case of an anionic 0.10 mM sodium dodecyl sulfate (SDS) (a decrease in oxidation potential by 50 mV and an increase in oxidation currents 2.2-fold in comparison with MWCNT-COOH/GCE). The electrooxidation of thymol at MWCNT-COOH–SDS/GCE proceeds irreversibly with the participation of one electron and one proton and is controlled by the adsorption of the analyte. The electrode response is linear in the ranges 0.500–17.0 and 17.0–150 μM of thymol with the limits of detection 0.14 μM and determination 0.48 μM.

Ключевые слова

Voltammetry, chemically modified electrodes, carbon nanotubes, surfactants, thymol, pharmaceutical analysis

Название журнала

JOURNAL OF ANALYTICAL CHEMISTRY

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85043398134&doi=10.1134%2fS1061934818010148&partnerID=40&md5=360ef03c4193e3e8fc9af2d0fa32b089

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https://repository.kpfu.ru/?p_id=179486

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Будников Герман Константинович	ru_RU
dc.contributor.author	Зиганшина Эндже Ришатовна	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Ромашкина Светлана Александровна	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. Voltammetric determination of thymol on an electrode modified by coimmobilized carboxylated multiwalled carbon nanotubes and surfactants / G.K. Ziyatdinova, S.A. Romashkina, E.R. Ziganshina, H.C. Budnikov // J. Anal. Chem. – 2018. – V. 73. – № 1. – P. 63-70.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=179486	ru_RU
dc.description.abstract	JOURNAL OF ANALYTICAL CHEMISTRY	ru_RU
dc.description.abstract	Thymol is oxidized at glassy carbon electrodes (GCEs) modified with coimmobilized carboxylated multiwalled carbon nanotubes (MWCNT-COOH) and surfactants of various nature in a Britton–Robinson buffer solution. The effect of the nature and concentration of surfactants in the composition of the electrode surface modifier on the amperometric response of thymol was evaluated. It was found that the best voltammetric characteristics are achieved in the case of an anionic 0.10 mM sodium dodecyl sulfate (SDS) (a decrease in oxidation potential by 50 mV and an increase in oxidation currents 2.2-fold in comparison with MWCNT-COOH/GCE). The electrooxidation of thymol at MWCNT-COOH–SDS/GCE proceeds irreversibly with the participation of one electron and one proton and is controlled by the adsorption of the analyte. The electrode response is linear in the ranges 0.500–17.0 and 17.0–150 μM of thymol with the limits of detection 0.14 μM and determination 0.48 μM.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	carbon nanotubes	ru_RU
dc.subject	surfactants	ru_RU
dc.subject	thymol	ru_RU
dc.subject	pharmaceutical analysis	ru_RU
dc.title	Voltammetric Determinations of Thymol on an Electrode Modified by Coimmobilized Carboxylated Multiwalled Carbon Nanotubes and Surfactants	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU