КФУ. Карточка публикации. Selective electrochemical sensor based on the electropolymerized p-coumaric acid for the direct determination of L-cysteine

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SELECTIVE ELECTROCHEMICAL SENSOR BASED ON THE ELECTROPOLYMERIZED P-COUMARIC ACID FOR THE DIRECT DETERMINATION OF L-CYSTEINE

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2018

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Гусс Екатерина Валерьевна, автор

Зиятдинова Гузель Камилевна, автор

Авторы, аспиранты КФУ

Гусс Екатерина Валерьевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova G. Selective electrochemical sensor based on the electropolymerized p-coumaric acid for the direct determination of L-cysteine / G. Ziyatdinova, E. Kozlova, H. Budnikov // Electrochim. Acta. – 2018. – V. 270. – P. 369-377.

Аннотация

Novel electrochemical sensor based on poly(p-coumaric acid) electrodeposited on the surface of multi-walled carbon nanotubes modified glassy carbon electrode (poly(p-coumaric acid)/MWNT/GCE) has been developed for the direct determination of L-cysteine. Poly(p-coumaric acid) has been obtained by potentiodynamic electrolysis under the optimized conditions (0.10 mM p-coumaric acid in 0.1 M NaOH using 5 cycles in the potential window of 0-1.0 V and the scan rate of 25 mV s-1). Sensor surface has been studied by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. Under conditions of DPV, the sensor response is linear in the ranges of 7.5-50 and 50-1000 ?M of L-cysteine with the detection and quantification limits of 1.1 and 3.6 ?M, respectively. The excellent sensor selectivity to L-cysteine in the presence of glucose, uric and ascorbic acids, dopamine, L-tyrosine and S-containing substances has been observed.

Ключевые слова

Voltammetry, electrochemical sensors, electropolymerization, p-coumaric acid, L-cysteine.

Название журнала

ELECTROCHIMICA ACTA

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044144988&doi=10.1016%2fj.electacta.2018.03.102&partnerID=40&md5=7162fb0be2e4fe5c599e54b35692e27b

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https://repository.kpfu.ru/?p_id=181082

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	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. Selective electrochemical sensor based on the electropolymerized p-coumaric acid for the direct determination of L-cysteine / G. Ziyatdinova, E. Kozlova, H. Budnikov // Electrochim. Acta. – 2018. – V. 270. – P. 369-377.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=181082	ru_RU
dc.description.abstract	ELECTROCHIMICA ACTA	ru_RU
dc.description.abstract	Novel electrochemical sensor based on poly(p-coumaric acid) electrodeposited on the surface of multi-walled carbon nanotubes modified glassy carbon electrode (poly(p-coumaric acid)/MWNT/GCE) has been developed for the direct determination of L-cysteine. Poly(p-coumaric acid) has been obtained by potentiodynamic electrolysis under the optimized conditions (0.10 mM p-coumaric acid in 0.1 M NaOH using 5 cycles in the potential window of 0-1.0 V and the scan rate of 25 mV s-1). Sensor surface has been studied by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. Under conditions of DPV, the sensor response is linear in the ranges of 7.5-50 and 50-1000 ?M of L-cysteine with the detection and quantification limits of 1.1 and 3.6 ?M, respectively. The excellent sensor selectivity to L-cysteine in the presence of glucose, uric and ascorbic acids, dopamine, L-tyrosine and S-containing substances has been observed.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	electrochemical sensors	ru_RU
dc.subject	electropolymerization	ru_RU
dc.subject	p-coumaric acid	ru_RU
dc.subject	L-cysteine.	ru_RU
dc.title	Selective electrochemical sensor based on the electropolymerized p-coumaric acid for the direct determination of L-cysteine	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU