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The theoretical description for sulfite vanadium(III)-oxyhydroxide-assisted electrochemical determination in natural water and beverages
(2022) Tkach, Volodymyr; Kushnir, Marta; Oliveira, Sílvio C.; Garcia, Jarem; Ivanushko, Yana; Nazymok, Yevgeniya; Morozova, Tetiana; Yagodynets, Petro; Khmeliar, Inesa; Kushnir, Lesya; Shahiieva, Raisa; Vitriak, Oksana; Romanova, Zoriana; Grabovska, Olena
Sulfite is the ion of sulfurous acid, correspondent to tetravalent sulfur. It is used as a conservant in food industry and in beverage production. On the other hand, sulfite is an ecological marker for acid rains occurrence, which may be highly (eco)toxic, reason why its determination is really actual. Being a tetravalent sulfur derivative, sulfite may be either oxidized or reduced. In the case of cathodic reduction, the elemental sulfur or sulfide-ion may be a product, depending on pH.
The theoretical description for sotolone cathodic and anodic electrochemical determination in wines
(2023) Tkach, Volodymyr; Kushnir, Marta; Oliveira, Sílvio C.; Garcia, Jarem; Karputina, Margarita; Khargeliia (Karputina), Daria; Ivanushko, Yana; Morozova, Tetiana; Yagodynets, Petro
Sotolone is a natural aromatizer, present in Portuguese wine. The goal of this work is the mechanistic theoretic analysis of the sotolon electrochemical determination over a conducting polymer electrode.