Reactions of synthetic phenolic antioxidants with electrogenerated titrants and their analytical applications |
| |
Authors: | G K Ziyatdinova A A Gainetdinova G K Budnikov |
| |
Institution: | 1.Butlerov Institute of Chemistry,Kazan State University,Kazan, Tatarstan,Russia |
| |
Abstract: | Synthetic phenolic compounds (pyrogallol, catechol, hydroquinone, and their derivatives bearing heterocyclic fragments) react
with electrogenerated titrants, halogens, and ferricyanide(III) ions. Stoichiometric coefficients of reactions are found.
It is shown that the use of ferricyanide(III) ions as a titrant and a one-electron oxidant for the determination of this class
of antioxidants offers advantages in comparison with titrants-halogens. The found amounts of pyrogallol, pyrocatechol, and
hydroquinone derivatives in model solutions with the RSD 1–5% are fractions of milligrams. It is found that, in the series
of the studied synthetic phenolic compounds, pyrocatechol derivatives possess the maximum antioxidant capacity (AOC). |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|