Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
VOLTAMMETRIC DETERMINATION OF THYMOL IN OREGANO USING CEO2-MODIFIED ELECTRODE IN BRIJ 35 MICELLAR MEDIUM
Form of presentationArticles in international journals and collections
Year of publication2017
Языканглийский
  • Budnikov German Konstantinovich, author
  • Ziganshina Endzhe Rishatovna, author
  • Ziyatdinova Guzel Kamilevna, author
  • Nguen Kong Fuk, postgraduate kfu
  • Bibliographic description in the original language Ziyatdinova G. Voltammetric determination of thymol in oregano using CeO2-modified electrode in Brij 35 micellar medium / G. Ziyatdinova, E. Ziganshina, Ph. Nguyen Cong, H. Budnikov // Food. Anal. Meth. - 2017. - V. 10. - № 1. - P. 129-136
    Annotation Glassy carbon electrode (GCE) modified with CeO2 nanoparticles dispersed in 0.01 M Brij 35 (CeO2-Brij 35/GCE) has been developed for the determination of thymol in micellar medium. Scanning electron microscopy (SEM) data confirm immobilization of the nanomaterial on the electrode surface. The electrooxidation of thymol on CeO2-Brij 35/GCE is irreversible diffusion-controlled process with participation of two electrons and two protons. Differential pulse voltammetry has been used for the quantification of thymol. The linear dynamic range of the thymol determination is 0.700-10.1 and 10.1-606 μM with the limits of detection and quantification 0.20 and 0.65 μM, respectively. The approach developed has been applied for the quantification of thymol in oregano spices using preliminary micellar extraction with Brij 35. The results of voltammetric determination are in good agreement with the data of standard spectrophotometric method.
    Keywords Chemically modified electrodes, Nanoparticles, Micellar media, Differential pulse voltammetry, Thymol, Food analysis
    The name of the journal Food Analytical Methods
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973662113&partnerID=40&md5=1a8c4c06338a5d0b30d24707246bf50a
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=133285&p_lang=2

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