Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
THE ANALYTICAL CAPABILITIES OF ELECTROCHEMICAL SENSORS BASED ON TRANSITION METAL OXIDE NANOMATERIALS
Form of presentationArticles in international journals and collections
Year of publication2023
Языканглийский
  • Ziyatdinova Guzel Kamilevna, author
  • Gimadutdinova Liliya Timurovna, postgraduate kfu
  • Yakupova Elvira Nailevna, postgraduate kfu
  • Antonova Tatyana Sergeevna, author
  • Grigoreva Irina Olegovna, author
  • Bibliographic description in the original language Ziyatdinova, G. The analytical capabilities of electrochemical sensors based on transition metal oxide nanomaterials / G. Ziyatdinova, L. Gimadutdinova, T. Antonova, I. Grigoreva, E. Yakupova // Eng. Proc. - 2023. - V. 48. - № 1. - Article 13. - 7 p.
    Annotation Voltammetric sensors based on CeO2, SnO2, CeO2?Fe2O3 nanoparticles (NPs) and MnO2 nanorods (NRs) were developed for the quantification of various organic substances. Surfactant media were applied as dispersive agents for metal oxide nanomaterials, providing a high stability of the dispersions after sonication and a decrease in the NPs' size, as well as the preconcentration of the target analytes at the sensor surface due to the hydrophobic interactions between the surfactant and the analyte molecules. Natural phenolics (quercetin, rutin, gallic acid, taxifolin, eugenol, vanillin, and hesperidin), propyl gallate, α-lipoic acid, and synthetic food colorants (tartrazine, brilliant blue FCF, and sudan I) were studied as analytes. The effect of the nature and concentration of the surfactant on the target analyte response was evaluated. Cationic surfactants (cetylpyridinium (CPB) or cetyltriphenylphosphonium bromides (CTPPB)) showed the best effect for the majority of the analytes. Wide linear dynamic ranges and low detection limits were obtained and were improved vs. reported to date. The simultaneous quantification of tartrazine and brilliant blue FCF was achieved with a high selectivity. The practical applicability of the sensors was shown on the real samples and was validated by comparison to independent methods.
    Keywords Electrochemical sensors, voltammetry, chemically modified electrodes, metal oxide nanomaterials, surfactants, antioxidants, food colorants, azo dyes
    The name of the journal Engineering Proceedings
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184658375&doi=10.3390%2fCSAC2023-14916&partnerID=40&md5=9246be80ea52bd6f7ab0140f1afc5cf2
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=300055&p_lang=2

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