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Separation of polyphenols in Canary Islands wine by capillary zone electrophoresis without preconcentration
J Pazourek1, G González, A L Revilla
1Department of Analytical Chemistry, Masaryk University, Brno, Czech Republic. pazourek@chemi.muni.cz
Journal of Chromatography. A
|April 18, 2000
Abstract:
A method for separation and determination of polyphenols in wine by capillary zone electrophoresis (CZE) without any preconcentration step is described. The sensitivity and limits of detection for gentisic and p-coumaric acid are better than those previously published. The effect of a possible C18 solid-phase extraction prior to the CZE analysis was examined. The developed optimized method (without any extraction step) was applied to the analysis of wines from Tenerife, Canary Islands.