title: Gas chromatographic differentiation of 4-desmethyl, 4-monomethyl and 4,4-dimethylsterols.
mesh_terms: D000085:Acetates; D002782:Cholestenes / Q000032:analysis; D002784:Cholesterol / Q000032:analysis; D002849:Chromatography, Gas; D005069:Evaluation Studies as Topic; D007810:Lanosterol / Q000032:analysis; D000432:Methanol; D008722:Methods; D012822:Silicon Dioxide; D012855:Sitosterols / Q000032:analysis; D013261:Sterols / Q000032:analysis*; D013265:Stigmasterol / Q000032:analysis; D013329:Structure-Activity Relationship; D013696:Temperature
chemical_list: D000085:Acetates; D002782:Cholestenes; D012855:Sitosterols; D013261:Sterols; D007810:Lanosterol; D012822:Silicon Dioxide; D002784:Cholesterol; D013265:Stigmasterol; D000432:Methanol