title: [Extraction photometric determination of choline and its derivatives using bromthymol blue].
mesh_terms: D001979:Bromthymol Blue; D002794:Choline / Q000031:analogs & derivatives / Q000032:analysis*; D013053:Spectrophotometry / Q000379:methods
chemical_list: D002794:Choline; D001979:Bromthymol Blue
vernacular_title: Extrakcnĕ fotometrické stanovení cholinu a jeho derivátů bromtymolovou modrí.