Ukr. Bioorg. Acta 2020, Vol. 15, N2, 42-45.

The theoretical description for the sucralose electrochemical determination, assisted by poly(safranine) modified electrode

Volodymyr V. Tkach^1,2*, Nataliia M. Storoshchuk¹, Silvio C. de Oliveira², Yana G. Ivanushko³, Yevgeniya V. Nazymok³, Olga V. Luganska⁴, and Petro I. Yagodynbets¹

¹ Yuriy Fedkovich Chernivtsi National University, 2 Kotsiubynsky St., Chernivtsi, 58012, Ukraine
tel.: +380-50-640-0359; e-mail: nightwatcher2401@gmail.com
² Universidade Federal de Mato Grosso do Sul, Ave. Sen. Felinto. Muller, 1555, C/P. 549, 79074-460, Campo Grande, MS, Brazil
³Bukovinian State Medical University, 9 Teatralna Sq., Chernivtsi, 58000, Ukraine
⁴ Zaporizhzhya National University, 66 Zhukovskogo St., Zaporizhzhya, 69600, Ukraine

ABSTRACT
For the first time, sucralose cathodic electrochemical determination, assisted by the saftanine-modified electrode has been theoretically described. The correspondent mathematical model analysis has shown that the steady-state stability range is wider than in the most system of electrochemical determination over the pyridinic nitrogen-containing conducting polymer. Moreover, the oscillatory behavior is less probable. Therefore, poly(safranine) is an efficient electrode modifier for sucralose electrochemical determination.

KEYWORDS
sucralose, conducting polymer, safranine, electrochemical sensors, stable steady-state.

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