Simultaneous HPLC analysis of fat-soluble vitamins in selected animal products after small-scale extraction

摘要

A method for simultaneous determination of fat-slble vitamins in animal products is presented. Milk, and two fish products containing many ingredients, were used as test materials. The vitamins determined were tocpherols, β-carotene, all-trans-retinol and in the case of fish, cholecalciferol. The sample preparation procedure, consisting of saponification and extraction by n-hexane-ethyl acetate was carried out in small-scale.