Simultaneous determination of trans-resveratrol and sorbic acid in wine by capillary zone electrophoresis.
A method for separation and determination of sorbic acid, a food and beverage preservative, and trans-resveratrol, a biomedically active substance, in wine by capillary zone electrophoresis is described. A solid-phase extraction step on C18-column prior to the electrophoretic separation providing lower detection limits was used for trans-resveratrol determination. For determination of sorbic acid direct analysis of wine (without a preconcentration step) was used. The method is rapid and sensitive and was applied to the analysis of wines from Alsace, France.
Dobiásová
Zuzana
Z
Department of Analytical Chemistry, Masaryk University, Brno, Czech Republic.
Pazourek
Jirí
J
Havel
Josef
J
D019075:Electrophoresis, Capillary / Q000379:methods*; D000077185:Resveratrol; D013011:Sorbic Acid / Q000032:analysis*; D013267:Stilbenes / Q000032:analysis*; D013997:Time Factors; D014920:Wine / Q000032:analysis*
D013267:Stilbenes; D000077185:Resveratrol; D013011:Sorbic Acid