THE THEORETICAL DETERMINATION OF PURPUROGALLIN IN THE PRESENCE OF TRANSITION METAL CATIONS, ASSISTED BY A NEW SCHIFF BASE
2019
Tkach, Volodymyr Valentynovych | V. Kushnir, Marta | M. Storoshchuk, Nataliia | C. de Oliveira, Sílvio | V. Luganska, Olga | V. Parchenko, Volodymyr | I. Aksyonova, Ilona | M. Odyntsova, Vira | Genç, Mert | I. Yagodynets´, Petro
The possibility of purpurogallin electrochemical determination on an anode, modified by a new triazolic Schiff base, has been theoretically evaluated. The correspondent mathematical model has been developed and analyzed by means of linear stability theory and bifurcation analysis. It was shown that the Schiff base provides an efficient purpurogallin electrochemical determination in the presence of transition metal cations, forming complex. The proper basicity of Schiff base and triazolic ring favors the process. The steady-state stability is easy to establish. The oscillatory behavior, in this case, is possible, due to the double electric layer influences of the electrochemical stage.
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