KFU. Card publication. Voltammetric determination of capsaicin using CeO2-surfactant/SWNT-modified electrode

KAZAN
FEDERAL UNIVERSITY

- RUS
- 中文
- ES

VOLTAMMETRIC DETERMINATION OF CAPSAICIN USING CEO2-SURFACTANT/SWNT-MODIFIED ELECTRODE

Form of presentation

Articles in international journals and collections

Year of publication

2020

��

��

Authors, employees of KFU

Budnikov German Konstantinovich, author

Ziganshina Endzhe Rishatovna, author

Ziyatdinova Guzel Kamilevna, author

Authors, students KFU

Shamsevalieva Aliya Ramilevna, author

Bibliographic description in the original language

Ziyatdinova, G. Voltammetric determination of capsaicin using CeO2-surfactant/SWNT-modified electrode / G. Ziyatdinova, E. Ziganshina, A. Shamsevalieva, H. Budnikov // Arab. J. Chem. – 2020 . - V. 13. – � 1. – P. 1524-1532.

Annotation

Glassy carbon electrodes (GCE) modified with carboxylated single-walled carbon nanotubes (SWNT-COOH) and CeO2-surfactants dispersions are developed for the capsaicin quantification. The effect of cationic cetylpyridinium bromide (CPB), anionic sodium dodecylsulfate (SDS) and nonionic Triton X100 as co-modifiers are tested. CeO2-CPB/SWNT-COOH/GCE provides 2.8- and 1.9-fold increase of capsaicin oxidation currents in comparison to bare GCE and SWNT-COOH/GCE, respectively, confirming the synergetic effect of the modifiers. Scanning electron microscopy (SEM) data confirm successful immobilization of the nanomaterials on the electrode surface leading to the significant changes in its morphology. The parameters of capsaicin electrooxidation are found. Differential pulse mode is applied for the capsaicin determination. The pulse parameters are optimized. The linear dynamic ranges of 0.10–7.5 and 7.5–500 μM of capsaicin with the limits of detection and quantification of 28 and 92 nM respectively confirm the high sensitivity of the method developed. The selectivity of the electrode toward capsaicinoids is proved. The method was applied for the total capsaicinoids quantification in real samples (red hot pepper spices and tinctures of Capsicum annuum L.). A good agreement with the UV-spectroscopic data is obtained.

Keywords

Voltammetry, metal oxide nanoparticles, carbon nanotubes, surfactants, chemically modified electrodes, capsaicin

The name of the journal

Arabian Journal of Chemistry

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044933068&doi=10.1016%2fj.arabjc.2017.12.019&partnerID=40&md5=b1a0d8d66b915d2111554aaa64041ef9

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

https://repository.kpfu.ru/eng/?p_id=212965&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Budnikov German Konstantinovich	ru_RU
dc.contributor.author	Ziganshina Endzhe Rishatovna	ru_RU
dc.contributor.author	Ziyatdinova Guzel Kamilevna	ru_RU
dc.contributor.author	Shamsevalieva Aliya Ramilevna	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Ziyatdinova, G. Voltammetric determination of capsaicin using CeO2-surfactant/SWNT-modified electrode / G. Ziyatdinova, E. Ziganshina, A. Shamsevalieva, H. Budnikov // Arab. J. Chem. – 2020 . - V. 13. – � 1. – P. 1524-1532.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=212965&p_lang=2	ru_RU
dc.description.abstract	Arabian Journal of Chemistry	ru_RU
dc.description.abstract	Glassy carbon electrodes (GCE) modified with carboxylated single-walled carbon nanotubes (SWNT-COOH) and CeO2-surfactants dispersions are developed for the capsaicin quantification. The effect of cationic cetylpyridinium bromide (CPB), anionic sodium dodecylsulfate (SDS) and nonionic Triton X100 as co-modifiers are tested. CeO2-CPB/SWNT-COOH/GCE provides 2.8- and 1.9-fold increase of capsaicin oxidation currents in comparison to bare GCE and SWNT-COOH/GCE, respectively, confirming the synergetic effect of the modifiers. Scanning electron microscopy (SEM) data confirm successful immobilization of the nanomaterials on the electrode surface leading to the significant changes in its morphology. The parameters of capsaicin electrooxidation are found. Differential pulse mode is applied for the capsaicin determination. The pulse parameters are optimized. The linear dynamic ranges of 0.10–7.5 and 7.5–500 μM of capsaicin with the limits of detection and quantification of 28 and 92 nM respectively confirm the high sensitivity of the method developed. The selectivity of the electrode toward capsaicinoids is proved. The method was applied for the total capsaicinoids quantification in real samples (red hot pepper spices and tinctures of Capsicum annuum L.). A good agreement with the UV-spectroscopic data is obtained.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	metal oxide nanoparticles	ru_RU
dc.subject	carbon nanotubes	ru_RU
dc.subject	surfactants	ru_RU
dc.subject	chemically modified electrodes	ru_RU
dc.subject	capsaicin	ru_RU
dc.title	Voltammetric determination of capsaicin using CeO2-surfactant/SWNT-modified electrode	ru_RU
dc.type	Articles in international journals and collections	ru_RU