EXAMINATION OF TYPE F BOTULIN TOXIN WITH THE ACID OF SEPHADEX GEL FILTRATION
ARMY BIOLOGICAL LABS FREDERICK MD
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By means of filtration through the sephadex gels G-100 and G-200 it is possible to separate type F botulin toxins into fractions differing in their biologic activity. It is established that, as determined by the gel filtration method, the molecular mass of type F botulin toxin is close to 140,000.