The Theoretical Description for the Perylaldehyde Aldoxyme Anodic Electrochemical Determination, Assisted by the Novel Squaraine Dye Composite with Copper(ii) Sulfide Nanoparticles

In this work the perillaldehyde aldoxime electrochemical determination on an anode, modified by squaraine dye composite with copper sulfide nanoparticles is analyzed. The electroanalytical process involves the formation of trivalent copper species, capable to oxidize the analyte by two parallel mech...

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Bibliographic Details
Published in:Orbital : The Electronic Journal of Chemistry 2021-12, Vol.13 (5)
Main Authors: Volodymyr Valentynovych Tkach, Marta V. Kushnir, Yana G. Ivanushko, Sílvio Cesar de Oliveira, Petro I. Yagodynets´, Zholt O. Kormosh, Lucinda Vaz dos Reis
Format: Article
Language:English
Subjects:
perillaldehyde aldoxime
sugar substitute
electrochemical sensor
squaraine dye
copper sulfide
stable steady-state
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Summary:In this work the perillaldehyde aldoxime electrochemical determination on an anode, modified by squaraine dye composite with copper sulfide nanoparticles is analyzed. The electroanalytical process involves the formation of trivalent copper species, capable to oxidize the analyte by two parallel mechanisms. The correspondent mathematical model, correspondent to both of them, has been developed and analyzed by means of linear stability theory and bifurcation analysis. The model analysis clearly shows that the composite of a squaraine dye in organic phase and bivalent copper sulfide in the inorganic phase may be an efficient electrode modifier for perillaldehyde aldoxime electrochemical determination on an anode. The electroanalytical process will be mostly kinetically-controlled with the possibility of the transfer to diffusion-controlled mode. On the other hand, both oscillatory and monotonic instabilities may be realized in the electroanalytical process, and their probability will depend on the direction of the electroanalytical scenario in the concrete conditions, due to the possibility of the formation of ionic compounds in the pre-surface layer. DOI: http://dx.doi.org/10.17807/orbital.v13i5.1501
ISSN:1984-6428