KFU. Card publication. Electropolymerized 4-Aminobenzoic Acid Based Voltammetric Sensor for the Simultaneous Determination of Food Azo Dyes

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FEDERAL UNIVERSITY

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ELECTROPOLYMERIZED 4-AMINOBENZOIC ACID BASED VOLTAMMETRIC SENSOR FOR THE SIMULTANEOUS DETERMINATION OF FOOD AZO DYES

Form of presentation

Articles in international journals and collections

Year of publication

2022

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Authors, employees of KFU

Davletshin Rustam Rifkhatovich, author

Ziyatdinova Guzel Kamilevna, author

Authors, students KFU

Titova Mariya Sergeevna, author

Bibliographic description in the original language

Ziyatdinova, G. Electropolymerized 4-aminobenzoic acid based voltammetric sensor for the simultaneous determination of food azo dyes / G. Ziyatdinova, M. Titova, R. Davletshin // Polymers. – 2022. – V. 14. – � 24. – Article 5429. – 21 p.

Annotation

Electrochemical sensors with polymeric films as a sensitive layer are of high interest in current electroanalysis. A voltammetric sensor based on multi-walled carbon nanotubes (MWCNTs) and electropolymerized 4-aminobenzoic acid (4-ABA) has been developed for the simultaneous determination of synthetic food azo dyes (sunset yellow FCF and tartrazine). Based on the voltammetric response of the dyes' mixture, the optimal conditions of electropolymerization have been found to be 30-fold potential scanning between −0.3 and 1.5 V, at 100 mV s−1 in the 100 ?mol L−1 monomer solution in phosphate buffer pH 7.0. The poly (4-ABA)-based electrode shows a 10.5-fold increase in its effective surface area and a 17.2-fold lower electron transfer resistance compared to the glassy carbon electrode (GCE). The sensor gives a sensitive and selective response to sunset yellow FCF and tartrazine, with the peak potential separation of 232 mV in phosphate buffer pH 4.8. The electrooxidation parameters of dyes have been calculated. Simultaneous quantification is possible in the dynamic ranges of 0.010–0.75 and 0.75–5.0 ?mol L−1 for both dyes, with detection limits of 2.3 and 3.0 nmol L−1 for sunset yellow FCF and tartrazine, respectively. The sensor has been tested on orange-flavored drinks and validated with chromatography.

Keywords

Electropolymerization, 4-aminobenzoic acid, modified electrodes, electrochemical sensors, tartrazine, sunset yellow, food analysis

The name of the journal

POLYMERS

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

https://repository.kpfu.ru/eng/?p_id=278344&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Davletshin Rustam Rifkhatovich	ru_RU
dc.contributor.author	Ziyatdinova Guzel Kamilevna	ru_RU
dc.contributor.author	Titova Mariya Sergeevna	ru_RU
dc.date.accessioned	2022-01-01T00:00:00Z	ru_RU
dc.date.available	2022-01-01T00:00:00Z	ru_RU
dc.date.issued	2022	ru_RU
dc.identifier.citation	Ziyatdinova, G. Electropolymerized 4-aminobenzoic acid based voltammetric sensor for the simultaneous determination of food azo dyes / G. Ziyatdinova, M. Titova, R. Davletshin // Polymers. – 2022. – V. 14. – � 24. – Article 5429. – 21 p.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=278344&p_lang=2	ru_RU
dc.description.abstract	POLYMERS	ru_RU
dc.description.abstract	Electrochemical sensors with polymeric films as a sensitive layer are of high interest in current electroanalysis. A voltammetric sensor based on multi-walled carbon nanotubes (MWCNTs) and electropolymerized 4-aminobenzoic acid (4-ABA) has been developed for the simultaneous determination of synthetic food azo dyes (sunset yellow FCF and tartrazine). Based on the voltammetric response of the dyes' mixture, the optimal conditions of electropolymerization have been found to be 30-fold potential scanning between −0.3 and 1.5 V, at 100 mV s−1 in the 100 ?mol L−1 monomer solution in phosphate buffer pH 7.0. The poly (4-ABA)-based electrode shows a 10.5-fold increase in its effective surface area and a 17.2-fold lower electron transfer resistance compared to the glassy carbon electrode (GCE). The sensor gives a sensitive and selective response to sunset yellow FCF and tartrazine, with the peak potential separation of 232 mV in phosphate buffer pH 4.8. The electrooxidation parameters of dyes have been calculated. Simultaneous quantification is possible in the dynamic ranges of 0.010–0.75 and 0.75–5.0 ?mol L−1 for both dyes, with detection limits of 2.3 and 3.0 nmol L−1 for sunset yellow FCF and tartrazine, respectively. The sensor has been tested on orange-flavored drinks and validated with chromatography.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Electropolymerization	ru_RU
dc.subject	4-aminobenzoic acid	ru_RU
dc.subject	modified electrodes	ru_RU
dc.subject	electrochemical sensors	ru_RU
dc.subject	tartrazine	ru_RU
dc.subject	sunset yellow	ru_RU
dc.subject	food analysis	ru_RU
dc.title	Electropolymerized 4-Aminobenzoic Acid Based Voltammetric Sensor for the Simultaneous Determination of Food Azo Dyes	ru_RU
dc.type	Articles in international journals and collections	ru_RU