КФУ. Карточка публикации. Electrode Modified with Manganese Dioxide Nanorods for the Simultaneous Voltammetric Determination of Food Colorants ?

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ELECTRODE MODIFIED WITH MANGANESE DIOXIDE NANORODS FOR THE SIMULTANEOUS VOLTAMMETRIC DETERMINATION OF FOOD COLORANTS ?

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2023

Язык

английский

Авторы, сотрудники КФУ

Зиятдинова Гузель Камилевна, автор

Авторы, аспиранты КФУ

Гимадутдинова Лилия Тимуровна, автор

Библиографическое описание на языке оригинала

Gimadutdinova, L. Electrode modified with manganese dioxide nanorods for the simultaneous voltammetric determination of food colorants / L. Gimadutdinova, G. Ziyatdinova // Eng. Proc. – 2023. – V. 31. – № 1. – Article 12. – 7 p.

Аннотация

Synthetic colorants, in particular tartrazine and brilliant blue FCF, are widely used in food chemistry and technology although they can give negative health effects of various severities. Therefore, sensitive, selective, simple, and reliable methods for the quantification of these dyes are required. A glassy carbon electrode (GCE) modified with manganese dioxide nanorods (MnO2 NR) dispersed in cetylpyridinium bromide gives a sensitive response to tartrazine and brilliant blue FCF in mixtures. Electrode modification provides a 7.9-fold increase in the electroactive surface area and a 72-fold decrease in electron transfer resistance. Simultaneous voltammetric quantification of colorants was performed in phosphate buffer pH 7.0 in differential pulse mode. The linear dynamic ranges of 0.10–2.5 and 2.5–15 ?M of tartrazine and 0.25–2.5 and 2.5–15 ?M of brilliant blue FCF were obtained with the limits of detection of 43 and 41 nM, respectively. The advantage of the sensor developed is the high selectivity of response in the presence of typical interferences (inorganic ions, saccharides, ascorbic and sorbic acids) and other food colorants (riboflavin, indigo carmine, and sunset yellow). The practical applicability of the approach is shown in soft and isotonic sports drinks and is validated by comparison to chromatography.

Ключевые слова

Electrochemical sensors, voltammetry, chemically modified electrodes, metal oxide nanomaterials, food colorants

Название журнала

Engineering Proceedings

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85163591636&doi=10.3390%2fASEC2022-13837&partnerID=40&md5=db6f9adae673ec19f0b8295503e7396f

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https://repository.kpfu.ru/?p_id=286666

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Гимадутдинова Лилия Тимуровна	ru_RU
dc.date.accessioned	2023-01-01T00:00:00Z	ru_RU
dc.date.available	2023-01-01T00:00:00Z	ru_RU
dc.date.issued	2023	ru_RU
dc.identifier.citation	Gimadutdinova, L. Electrode modified with manganese dioxide nanorods for the simultaneous voltammetric determination of food colorants / L. Gimadutdinova, G. Ziyatdinova // Eng. Proc. – 2023. – V. 31. – № 1. – Article 12. – 7 p.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=286666	ru_RU
dc.description.abstract	Engineering Proceedings	ru_RU
dc.description.abstract	Synthetic colorants, in particular tartrazine and brilliant blue FCF, are widely used in food chemistry and technology although they can give negative health effects of various severities. Therefore, sensitive, selective, simple, and reliable methods for the quantification of these dyes are required. A glassy carbon electrode (GCE) modified with manganese dioxide nanorods (MnO2 NR) dispersed in cetylpyridinium bromide gives a sensitive response to tartrazine and brilliant blue FCF in mixtures. Electrode modification provides a 7.9-fold increase in the electroactive surface area and a 72-fold decrease in electron transfer resistance. Simultaneous voltammetric quantification of colorants was performed in phosphate buffer pH 7.0 in differential pulse mode. The linear dynamic ranges of 0.10–2.5 and 2.5–15 ?M of tartrazine and 0.25–2.5 and 2.5–15 ?M of brilliant blue FCF were obtained with the limits of detection of 43 and 41 nM, respectively. The advantage of the sensor developed is the high selectivity of response in the presence of typical interferences (inorganic ions, saccharides, ascorbic and sorbic acids) and other food colorants (riboflavin, indigo carmine, and sunset yellow). The practical applicability of the approach is shown in soft and isotonic sports drinks and is validated by comparison to chromatography.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Electrochemical sensors	ru_RU
dc.subject	voltammetry	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	metal oxide nanomaterials	ru_RU
dc.subject	food colorants	ru_RU
dc.title	Electrode Modified with Manganese Dioxide Nanorods for the Simultaneous Voltammetric Determination of Food Colorants ?	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU