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Revista Colombiana de Ciencias Químico - Farmacéuticas
Print version ISSN 0034-7418On-line version ISSN 1909-6356
Abstract
TKACH, Volodymyr V. et al. The theoretical description for perillartine electrochemical determination, assisted by cobalt oxyhydroxide in pair with its dioxide. Rev. colomb. cienc. quim. farm. [online]. 2022, vol.51, n.3, pp.1098-1113. Epub Dec 30, 2023. ISSN 0034-7418. https://doi.org/10.15446/rcciquifa.v51n3.106036.
Introduction:
Perillartine is a strong natural sweetener, considered 2000 as sweet as a common sugar. It may be allergic to some people. Also, it is used only in Japan, which may presuppose the possibility of falsify Japanese products without its use. Thus the development of an eficiente method of its quantitative and qualitative determination is really actual.
Methodology:
A mathematical model of an anodic process has been developed and analyzed by means of linear stability theory and bifurcation analysis. The model includes the most probable scenarios of the course of the electroanalytical process.
Results:
Perillartine is oxidized in basic media, yielding the polyol and the correspondent pseudoacid salt, which strongly contributes to the double electric layer ionic force. This may be responsible for the oscillatory and monotonic instabilities appearance in the electroanalytical process.
Conclusion:
Despite of the above mentioned statements, the composite is na efficient modifier for the electrochemical determination of perillartine in basic media.
Keywords : Perillartine; electrochemical sensor; cobalt oxyhydroxide; squaraine dyes; stable steady-state.