[Studies on cryoprecipitates. 5. Proteinchemical studies]

The total proteins are enriched 2.41 fold by cryoprecipitation. The protein fractions, however, have the same distribution as in the original plasma. With the help of radial immunodiffusion method haptoglobins were measured to have enriched to 351%, IgG to 252%, IgA to 307%, and IgM to 268%. The simultaneous increase of functional properties was systematically observed by taking the complete ABO-isoagglutinin titre as an example. The titre increase moves within the range of 1 to 2 degrees.