[Methods for determination of vitamins by means of high performance liquid chromatography (HPLC). I. Determination of vitamin D in vitamin concentrates, vitamin mixtures and mineral feedstuffs].
A method is described for the determination of vitamin D in vitamin-concentrates, -mixtures, and mineral feedstuffs. After saponification of the sample, vitamin D is extracted and purified on two columns. Vitamin D is separated by HPLC and determined photometrically.
D002851:Chromatography, High Pressure Liquid / Q000379:methods; D005504:Food Analysis; D014807:Vitamin D / Q000032:analysis*; D014815:Vitamins / Q000032:analysis
D014815:Vitamins; D014807:Vitamin D
Methoden zur Bestimmung von Vitaminen mittels Hochleistungsflüssigkeitschromatographie. I. Bestimmung von Vitamin D in Vitaminkonzentraten, Vitaminvormischungen und Mineralfuttermitteln.