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Voltammetric determination of nitro derivate of synthetic antioxidant 2,6-di-tert-butyl-4-methyl-phenol
Authors: Chýlková Jaromíra | Machalický Oldřich | Tomášková Markéta | Šelešovská Renáta | Navrátil Tomáš
Year: 2016
Type of publication: článek v odborném periodiku
Name of source: Analytical Letters
Page from-to: 92-106
Titles:
Language Name Abstract Keywords
cze Voltametrické stanovení nitroderivátu syntetického antioxidantu 2,6-di-tert-butyl-4-methyl-fenolu Byla zde publikována nová metoda pro stanovení nitroderivátu syntetického antioxidantu 2,6-di-tert-butyl-4-methyl-fenolu pomocí DPV na HMDE. Jako standard byl syntetizován 2,6-di-tert-butyl-4-methyl-4-nitro-2,5-cyclohexadiene-1-one, který byl pak využit pro voltametrické stanovení po nitraci. Byl také navržen nitrační mechanismus v acetanhydridu. Analyt pak poskytoval voltametrický signál ve směsi 0,014 mol L-1 KCl a 94% ethanolu. Vyvinutá metoda byla využita ke stanovení 2,6-di-tert-butyl-4-methyl-fenolu v oleji, kde byly získány uspokojivé výsledky. 2,6-di-tert-butyl-4-methyl-fenol; HMDE; nitrace; redukce; voltametrie
eng Voltammetric determination of nitro derivate of synthetic antioxidant 2,6-di-tert-butyl-4-methyl-phenol A new method is reported for the determination of the nitro derivative of the synthetic antioxidant 2,6-di-tert-butyl-4-methyl-phenol by differential pulse voltammetry with a hanging drop mercury electrode. Standard 2,6-di-tert-butyl-4-methyl-4-nitro-2,5-cyclohexadiene-1-one was synthetizes for voltammetric determination after nitration. A nitration mechanism in acetic anhydride was proposed. The analyte provided a voltammetric signal in a mixture of 0.014 mole per liter potassium chloride and 94% ethanol. The developed method was employed for the determination of 2,6-di-tert-butyl-4-methyl-phenol in oil with satisfactory results, suggesting future application for practical analysis. 2,6-di-tert-butyl-4-methyl-phenol; hanging drop mercury electrode; nitration; reduction; voltammetry

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