KFU. Card publication. Voltammetric sensor based on the electropolymerized phenol red for the simultaneous quantification of syringaldehyde and vanillin

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VOLTAMMETRIC SENSOR BASED ON THE ELECTROPOLYMERIZED PHENOL RED FOR THE SIMULTANEOUS QUANTIFICATION OF SYRINGALDEHYDE AND VANILLIN

Form of presentation

Conference proceedings in international journals and collections

Year of publication

2025

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Authors, employees of KFU

Ziyatdinova Guzel Kamilevna, author

Bibliographic description in the original language

Ziyatdinova, G. Voltammetric sensor based on the electropolymerized phenol red for the simultaneous quantification of syringaldehyde and vanillin / G. Ziyatdinova // The 5th International Online Conference on Nanomaterials (22-24 September, 2025). – Basel, Switzerland. – Abstr. Book. – P. 101.

Annotation

The 5th International Online Conference on Nanomaterials

Keywords

Voltammetry, sensing, electropolymerization, thriphenylmethane compounds, carbon nanomaterials, aromatic compounds, aldehydes

The name of the journal

The 5th International Online Conference on Nanomaterials

URL

https://sciforum.net/paper/view/23990

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

https://repository.kpfu.ru/eng/?p_id=317303&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Ziyatdinova Guzel Kamilevna	ru_RU
dc.date.accessioned	2025-01-01T00:00:00Z	ru_RU
dc.date.available	2025-01-01T00:00:00Z	ru_RU
dc.date.issued	2025	ru_RU
dc.identifier.citation	Ziyatdinova, G. Voltammetric sensor based on the electropolymerized phenol red for the simultaneous quantification of syringaldehyde and vanillin / G. Ziyatdinova // The 5th International Online Conference on Nanomaterials (22-24 September, 2025). – Basel, Switzerland. – Abstr. Book. – P. 101.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=317303&p_lang=2	ru_RU
dc.description.abstract	The 5th International Online Conference on Nanomaterials	ru_RU
dc.description.abstract	Syringaldehyde and vanillin are used as flavorings and odorants in the food, pharmaceutical, and cosmetic industries. Moreover, their concentration ratio is considered a significant parameter for brandy and cognac quality characterization, allowing for the identification of adulteration. Thus, the simultaneous quantification of syringaldehyde and vanillin is in high demand. Voltammetric sensors are a promising tool to solve this problem due to their high sensitivity, sufficient selectivity, fast response, and possibility of miniaturization. A glassy carbon electrode modified with carboxylated multi-walled carbon nanotubes and electropolymerized indicator phenol red was developed as a voltammetric sensor for the simultaneous determination of syringaldehyde and vanillin. The electropolymerization conditions were optimized using the voltammetric parameters of the syringaldehyde and vanillin mixture. The best resolution of anodic peaks (121 mV) with sufficient currents was obtained for 100 μM phenol red electropolymerized in 0.1 M sodium hydroxide by 10-fold potential cycling from 0.1 to 1.0 V with a scan rate of 75 mV s-1. Polymeric coverage provides an increase in the electroactive surface area of the electrode and a higher heterogeneous electron transfer rate constant vs. bare glassy carbon electrode. The irreversible diffusion-driven electrode reaction with the participation of two electrons and two protons was confirmed for both aldehydes. The linear dynamic ranges of sensor response for both analytes are 0.10-2.5 and 2.5-25 μM, with limits of detection equal to 44 and 33 nM for syringaldehyde and vanillin, respectively.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	sensing	ru_RU
dc.subject	electropolymerization	ru_RU
dc.subject	thriphenylmethane compounds	ru_RU
dc.subject	carbon nanomaterials	ru_RU
dc.subject	aromatic compounds	ru_RU
dc.subject	aldehydes	ru_RU
dc.title	Voltammetric sensor based on the electropolymerized phenol red for the simultaneous quantification of syringaldehyde and vanillin	ru_RU
dc.type	Conference proceedings in international journals and collections	ru_RU