Mathematical Description for Fipronil Electrochemical Detection Assisted by Cobalt (III) Oxyhydroxide

Year 2017, , 322 - 326, 24.12.2017

Volodymyr Valentynovych Tkach , Yana G. Ivanushko Svitlana M. Lukanova Sílvio C. De Oliveira Genílson R. Da Silva Fauze J. Anaissi Petro İ. Yagodynets

https://doi.org/10.24323/akademik-gida.370098

Abstract

The possibility of fipronil pesticide electrochemical determination
assisted by cobalt (III) oxyhydroxide was determined in this study. The redox
pair CoO(OH)/CoO₂ was used in this process. The correspondent
mathematical model was developed and analyzed by means of linear stability
theory and bifurcation analysis. It was shown that the oxyhydroxide may be
applied as an efficient electrode modifier in the detection of fipronil in
neutral and lightly alkaline media. Electrochemical response was clear and easy
to interpret. The possibility of oscillatory and monotonic instabilities was
also verified.

Keywords

Intoxication prevention, Fipronil, Cobalt (III) oxyhydroxide, Electrochemical sensors, Stable steady-state

Kobalt (III) Oksihidroksit Yardımıyla Fipronilin Elektrokimyasal Tespiti İçin Matematiksel Açıklama

Abstract

Bu çalışmada, kobalt (III) oksihidroksit kullanılarak fipronil
pestisidinin elektrokimyasal tespit olasılığı belirlenmiştir. Bu işlemde redoks
çifti CoO(OH)/CoO₂ kullanılmıştır. Karşılık gelen matematiksel
model, doğrusal kararlılık teorisi ve bifurkasyon analizi vasıtasıyla
geliştirilmiş ve analiz edilmiştir. Oksihidroksidin, nötr ve hafif alkali
ortamda fipronilin saptanmasında etkili bir elektrot değiştirici olarak
uygulanabileceği gösterilmiştir. Elektrokimyasal cevabın açık ve kolay
anlaşılır olduğu belirlenmiştir. Titreşimli ve monotonik istikrarsızlık
olasılığı da çalışmada doğrulanmıştır.

Keywords

Zehirlenme önleme, Fipronil, Kobalt (III) oksihidroksit, Elektrokimyasal sensörler, Kararlı hal

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