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Title (Primary) Electrochemical detection of polyphenolic compounds using carbon composite electrodes
Author Ahuatl, F.; Davila, M.M.; Elizalde, M.P.; Mattusch, J.; Wennrich, R.
Journal ECS Transactions
Year 2006
Department ANA
Volume 3
Issue 10
Page From 69
Page To 80
Language englisch
Abstract Carbon - Polyvinylchloride composite electrodes were used to study ascorbic acid, (+)-catechin, (-)-epicatechin, gallic acid and (-)-epigallocatechin in phosphate buffer solutions (pH 5.0 and 7.0) and in a model wine solution pH 3.6 by cyclic, differential and square wave voltammetry. Excellent linearity was obtained for these antioxidant compounds by differential pulse voltammetry and the detection limits at carbon composites ranged from 29 µg/l to 0.45 mg/l for (+)-catechin and were 0.16, 0.15, 0.10 mg/l for gallic acid, (-)-epicatechin and (-)-epigallocatechin, respectively in model wine solution pH 3.6. Differential and square wave voltammetry were employed to determine their electrochemical parameters and to quantify antioxidants at a carbon composite in a model wine solution prepared from the dilution 0.13 % (v/v) of a commercial red wine.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=2444
Ahuatl, F., Davila, M.M., Elizalde, M.P., Mattusch, J., Wennrich, R. (2006):
Electrochemical detection of polyphenolic compounds using carbon composite electrodes
ECS Transactions 3 (10), 69 - 80