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An Amperometric Sensor Based on Tin Dioxide and Cetylpyridinium Bromide Nanoparticles for the Determination of Vanillin

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dc.contributor.author Ziyatdinova G.
dc.contributor.author Antonova T.
dc.contributor.author Mubarakova L.
dc.contributor.author Budnikov H.
dc.date.accessioned 2019-01-22T20:40:45Z
dc.date.available 2019-01-22T20:40:45Z
dc.date.issued 2018
dc.identifier.issn 1061-9348
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/148253
dc.description.abstract © 2018, Pleiades Publishing, Ltd. Abstract: Voltammetric characteristics of vanillin are determined using electrodes modified with tin dioxide nanoparticles dispersed in surfactants of various nature in the Britton–Robinson buffer solution. The best characteristics are observed for a glassy carbon electrode modified by a dispersion of SnO2nanoparticles in cationic cetylpyridinium bromide (SnO2–CPB/GCE). The electrode is characterized by cyclic voltammetry and electrochemical impedance spectroscopy. A fourfold increase in the effective surface area of SnO2–CPB/GCE and a significant decrease in charge transfer resistance are shown in comparison with a GCE. The electrooxidation of vanillin proceeds irreversibly with the participation of two electrons and two protons and is controlled by the diffusion of the analyte. A sensor based on a SnO2–CPB/GCE was developed to determine vanillin; it functions under conditions of differential pulse voltammetry. The analytical ranges for vanillin are 0.10–100 and 100–500 µM with the limits of detection and quantification 20 and 67 nM, respectively. The developed sensor is selective to vanillin in the presence of inorganic ions, saccharides, ascorbic acid, and a number of phenolic compounds. The sensor is used for the determination of vanillin in perfumes for household chemicals and vanilla essential oils. The results are in good agreement with the data of gas chromatography.
dc.relation.ispartofseries Journal of Analytical Chemistry
dc.subject chemically modified electrodes
dc.subject nanoparticles of metal oxides
dc.subject surfactants
dc.subject vanillin
dc.subject voltammetry
dc.title An Amperometric Sensor Based on Tin Dioxide and Cetylpyridinium Bromide Nanoparticles for the Determination of Vanillin
dc.type Article
dc.relation.ispartofseries-issue 8
dc.relation.ispartofseries-volume 73
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 801
dc.source.id SCOPUS10619348-2018-73-8-SID85051491442


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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