The determination of niacin in selected foods by capillary electrophoresis and high performance liquid chromatography: acid extraction

alimentos analytical methods carne chromatographie chromatography composition globale cromatografia electroforesis electrophoresis fish food composition foods fruits frutas hortalizas hplc legume meat nicotinamida nicotinamide nicotinic acid pescado poisson (aliment) produit alimentaire proximate composition technique analytique vegetables viande vitaminas vitamine vitamins