%0 Journal Article %T Determination of Low Levels of Vitamin D3 in Animal Feeds, Using Sephadex LH-20 and Normal Phase High Pressure Liquid Chromatography %A Cohen,, Huguette %A Lapointe,, Michel %J Journal of AOAC International %V 63 %N 5 %P 1158-1162 %D 1980-09-01 %I AOAC INTERNATIONAL %~ DeepDyve