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- Title
O estudo teórico do desempenho dos polímeros condutores dos corantes azoicos na detecção eletroquímica de indigo-carmim.
- Authors
Tkach, Volodymyr V.; Kushnir, Marta V.; Ivanushko, Yana G.; Romaniv, Lyudmyla V.; de Oliveira, Sílvio C.; Ahafonova, Oleksandra V.; Serhata, Nataliia S.; Yagodynets, Petro I.
- Abstract
The function of the conducting polymers of azo-dyes during the indigo-carmine electrochemical detection has been investigated from the theoretical point of view. The correspondent model has been described and analyzed by means of linear stability theory and bifurcation analysis. It has been shown that the electroanalytical system depends strongly on pH, as the excessive protons concentrations drive the system to the electroanalytical inefficiency, as they block the reaction active sites. Nevertheless, despite of the mentioned, the azo-dyes conducting polymers are efficient modifiers for indigo-carmine electrochemical determination. The possibility of oscillatory and monotonic instabilities has also been verified.
- Subjects
CONDUCTING polymers; STABILITY theory; BIFURCATION theory; ELECTROCHEMICAL sensors; COLORING matter in food; AZO dyes
- Publication
Revista Colombiana de Ciencias Químico-Farmacéuticas, 2020, Vol 49, Issue 3, p1
- ISSN
0034-7418
- Publication type
Article
- DOI
10.15446/rcciquifa.v49n3.91338