title: The separation of the photochemical isomers of ergosterol by thin-layer chromatography.
mesh_terms: D002855:Chromatography, Thin Layer; D010777:Photochemistry; D013237:Stereoisomerism; D013261:Sterols / Q000302:isolation & purification; D014807:Vitamin D / Q000302:isolation & purification*
chemical_list: D013261:Sterols; D014807:Vitamin D