title: Analysis of the photochemical isomers of ergosterol by column chromatography.
mesh_terms: D002852:Chromatography, Ion Exchange; D004875:Ergosterol / Q000032:analysis*; D005782:Gels; D007536:Isomerism; D010777:Photochemistry; D012822:Silicon Dioxide; D013261:Sterols / Q000302:isolation & purification; D014466:Ultraviolet Rays
chemical_list: D005782:Gels; D013261:Sterols; D012822:Silicon Dioxide; D004875:Ergosterol