title: Analysis of fat-soluble vitamins. XIII. Chemical vitamin D assay in vitamin D and multivitamin preparations.
mesh_terms: D000042:Absorption; D002852:Chromatography, Ion Exchange; D003124:Colorimetry; D005223:Fats; D008433:Mathematics; D008722:Methods; D012995:Solubility; D014807:Vitamin D / Q000032:analysis*
chemical_list: D005223:Fats; D014807:Vitamin D