[Methods for determination of vitamins by means of high performance liquid chromatography (HPLC). II. Determination of vitamin A (author's transl)].
A method is described for the rapid determination of vitamin A in vitamin-concentrates, precursors and mineral supplements. After saponification of the sample, the vitamin A is extracted with petroleum-ether. In this extract the vitamin A is determined spectrophotometrically by HPLC without further clean-up.
D002851:Chromatography, High Pressure Liquid / Q000379:methods; D014801:Vitamin A / Q000032:analysis*
D014801:Vitamin A
Methoden zur Bestimmung von Vitaminen mittels Hochleistungsflüssigkeitschromatographie. II. Bestimmung von Vitamin A in Vitaminkonzentraten, Vitaminvormischungen und Mineralfuttermitteln.