title: Studies on the ultraviolet irradiation of provitamin D and its related compounds. II. Determination of potential vitamin D2 in ultraviolet irradiated products of ergosterol by gas-liquid chromatography.
mesh_terms: D002849:Chromatography, Gas; D004872:Ergocalciferols / Q000032:analysis*; D004875:Ergosterol / Q000528:radiation effects; D007536:Isomerism; D011830:Radiation Effects; D014466:Ultraviolet Rays; D014807:Vitamin D / Q000528:radiation effects*
chemical_list: D004872:Ergocalciferols; D014807:Vitamin D; D004875:Ergosterol