International Journal of New Chemistry
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Application of the fractional-rational functions for quantitative description of the basic principal components in voltammetric analysis of different apple juices by “electronic tongue”

Document Type : Research Paper

Authors

Guliya Bizhanova 1
Artem Sidelnikov 1
Raoul Nigmatullin 2
Herman Budnikov 3
Akhat Mustafin 4

1 the Department of Green Chemistry and Resource-Saving Technologies, the Institute of Chemistry and Protection in Emergency Situations of the Ufa University of Science and Technology

2 Radio-electronics and Informative Measurements Techniques department, Kazan National Research Technical University

3 Chemistry Institute named after A.M. Butlerov, Kazan Federal University

4 the Institute of Chemistry and Protection in Emergency Situations of the Ufa University of Science and Technology

https://doi.org/10.22034/ijnc.2024.2037894.1409
Abstract
For the purposes of a food chemistry, it is important to differentiate of complex liquids (as gels, emulsions, juices etc.) from each other. This paper presents for the first time a temporal approach to the study of the voltammetric behavior of multicomponent mixtures with implicit peaks of oxidation/reduction of electroactive components in the initial voltammetric data. It is shown that it is possible to structure voltammograms to obtain characteristic analytical signals due to the peculiarity of the evolution of the electrochemical electrode/solution system with their multiple functioning. Electrochemical analysis of the voltammograms and their subsequent processing with the help of principal component analysis (PCA) gives only qualitative picture. This method helps to differentiate the different components and separate them identifying different correlations. For the food industry it is very desirable to receive a set of quantitative parameters (not exceeding 20) in the significance/feature space that would separate one complex fluid from another one. The careful analysis helps to propose the class of fractional-rational functions allowing to solve this separation problem quantitavely.

Keywords

Voltammetric " electronic tongue" Chemometrics
PCA
Temporal electrochemical systems
Multisensory electrode
Subjects
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International Journal of New Chemistry
Volume 12, Issue 1
Winter 2025
Pages 97-112

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