Abstract
A study was conducted on the use of micellar electrokinetic capillary chromatography (MEKC) in the analysis of trans- and cis-resveratrol, quercetin catechin and gallic acid in wine. Standards and wine samples were directly injected into CE after a simple filtration, under a pressure of 50 mbar. Separation of the compounds was done in bare fused-silica capillary-extended light path with 50 μm i.d. An excellent correlation coefficient ( r = 0.99998) was obtained with a linear analytical response from 8 to 1000 ppm of resveratrol, quercetin, catechin and gallic acid in MEKC. The high separation efficiency obtained recommend CE as a good application for trans- and cis-resveratrol detection in wine.
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