| 摘要 |
A precipitate, which consists of fractions which are tolerated and those which are not tolerated by the body, of gamma-globulins precipitated from blood and blood products is chemically fractionated. The entire precipitate is for this purpose taken up or dissolved in an aqueous solution which contains macromolecular substances which are capable of uniting with the fractions which are not tolerated. The resulting aqueous solution containing gamma-globulin is then additionally mixed with a suspension of micaceous sheet silicates which have cation-exchange capacity. After a reaction time sufficient for the globulin fractions which are not tolerated to bind, by cation exchange, in the sheets of the sheet silicate has elapsed, a precipitating medium is added in order to remove the gamma-globulin fraction which separates out, together with the sheet silicates. Examples of suitable sheet silicates are bentonite, batavite and vermiculite, and an example of a suitable precipitating medium is polyethylene glycol. |
