Abstract
Conclusion
(1) Magnesium hydroxide in colloidal suspension adsorbs diphtheria toxin which can be eluted without destruction of the toxin. (2) The adsorption is approximately 94% complete. (3) The nitrogen loss per M.L.D. sustained during the process is in excess of 90%. (4) The method has been used with success in the adsorption of tetanospasmin and staphylolysin but not with tetanolysin and indicates possibilities for the purification of other bacterial products.
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