Univerzita Pardubice Fakulta chemicko- technologická

Univerzita Pardubice

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Studenti
English

Publikace detail

Comparison of different electrode materials and organic solvents in simultaneous determination of retinyl acetate and tocopheryl acetate

Autoři: Jashari Granit | Sýs Milan | Metelka Radovan | Švancara Ivan

Rok: 2019

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Comparison of different electrode materials and organic solvents in simultaneous determination of retinyl acetate and tocopheryl acetate	This scientific study describes a comparison of different electrode materials and organic solvents in simultaneous voltammetric determination of retinyl acetate and tocopheryl acetate based on their anodic oxidation using square wave voltammetry. Surprisingly, the highest sensitivity was obtained at carbon paste electrode modified with 40% sodium dodecyl sulphate (by mass). However, almost twice shorter linear ranges for both analytes were observed in comparison with commonly used glassy carbon electrode in 99.9% acetonitrile containing 0.1 mol L-1 lithium perchlorate. Moreover, it was found that other organic solvents can be potentially utilized as working media.