title: Preparation and properties of diphtheria toxoids in submerged culture. IV. A revised method for the purification of diphtheria toxin.
mesh_terms: D002606:Charcoal; D011232:Chemical Precipitation; D003353:Corynebacterium diphtheriae; D004168:Diphtheria Toxoid / Q000302:isolation & purification* / Q000592:standards; D005374:Filtration; D008722:Methods; D000644:Quaternary Ammonium Compounds; D013431:Sulfates; D014050:Toluene
chemical_list: D004168:Diphtheria Toxoid; D000644:Quaternary Ammonium Compounds; D013431:Sulfates; D002606:Charcoal; D014050:Toluene