title: Purification of Clostridium botulinum type A toxin.
mesh_terms: D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D003014:Clostridium botulinum; D005453:Fluorescence; D006863:Hydrogen-Ion Concentration; D005779:Immunodiffusion; D007525:Isoelectric Focusing; D008970:Molecular Weight; D014118:Toxins, Biological / Q000302:isolation & purification* / Q000633:toxicity
chemical_list: D014118:Toxins, Biological