METHOD FOR PURIFYING COMPOSITION COMPRISING ANTIBODIES WITH ANIONIC POLYMER

摘要

In the present invention, a composition comprising an antibody is adjusted to a state in which an anionic polymer is included at a pH below the antibody pI, and impurities that were insolubilized by the anionic polymer are removed. More preferably, the composition is adjusted to a state in which an anionic polymer is included at a pH of the antibody pI-1 or less, and impurities that were insolubilized by the anionic polymer are removed.