The mathematical stability study for the work of the [Fe(CN)6]3-/[Fe(CN)6]4- system as a mediator in nitrite electroreduction, used for electroanalytical means

Tkach, Volodymyr V; Santos, André; Ojani, Reza; Yagodynets, Petró I

doi:10.15446/rcciquifa.v45n1.58017

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Revista Colombiana de Ciencias Químico - Farmacéuticas

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Abstract

TKACH, Volodymyr V; SANTOS, André; OJANI, Reza and YAGODYNETS, Petró I. The mathematical stability study for the work of the [Fe(CN)₆]^3-/[Fe(CN)₆]^4- system as a mediator in nitrite electroreduction, used for electroanalytical means. Rev. colomb. cienc. quim. farm. [online]. 2016, vol.45, n.1, pp.77-91. ISSN 0034-7418. https://doi.org/10.15446/rcciquifa.v45n1.58017.

The work of nitrite sensor, based on the electrode, modified by the system of hexacianoferrates (II) and (III) as mediator, was mathematically described, and the corresponding mathematical model was analyzed by means of linear stability theory and bifurcation analysis. The model was compared with its analogues and experimental systems.

Keywords : Nitrite; Electroreduction; Hexacyanoferrate; Electrochemical sensors; Stable steady-state.

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