[Determination of vitamin D3 in premixes and mixed feeds].
The authors developed a two-dimensional thin-layer chromatographic method for the qualitative and quantitative determination of vitamin D3 in premixes and mixed feeds. The procedure permits to determine I.U. = 0.128 micrograms of vitamin D3. The method is illustrated by the description of the analyses of 3 premixes and 5 mixed feeds.
D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D002762:Cholecalciferol / Q000032:analysis*; D002855:Chromatography, Thin Layer; D005504:Food Analysis / Q000379:methods*; D009747:Nutritional Physiological Phenomena
D002762:Cholecalciferol
Uber die Bestimmung von Vitamin D3 in Praemixen und Futtermischungen