[Concentrations and levels of activity of important serum protein components in preserved serum]

The content of transport proteins, immune globulins, components of the complement system and protease inhibitors were estimated in two different plasma preparations, using bioassays by chromogenic substrates and laser nephelometry. The content of proteins under consideration was found about 50% less than in untreated human plasma. Some proteins such as antithrombin III and factor XIII are missing. The results are discussed in respect to clinical used of plasma preparations.