title: Separation of polyphenols in Canary Islands wine by capillary zone electrophoresis without preconcentration.
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.
authors.affiliation: Department of Analytical Chemistry, Masaryk University, Brno, Czech Republic. pazourek@chemi.muni.cz
authors.forename: J
authors.initials: J
authors.lastname: Pazourek
authors.forename: G
authors.initials: G
authors.lastname: González
authors.forename: A L
authors.initials: AL
authors.lastname: Revilla
authors.forename: J
authors.initials: J
authors.lastname: Havel
mesh_terms: D019075:Electrophoresis, Capillary / Q000379:methods*; D005419:Flavonoids; D010636:Phenols / Q000302:isolation & purification*; D011108:Polymers / Q000302:isolation & purification*; D059808:Polyphenols; D014920:Wine / Q000032:analysis*
chemical_list: D005419:Flavonoids; D010636:Phenols; D011108:Polymers; D059808:Polyphenols