Assertion: immunoglobulin | /r/HasProperty | isgsolution
Facets:
Source sentences:
text: 4,272,521 discloses a method for the removal of both prekallikrein activator (PKA) and kallikrein-activatable precursor to PKA (Factor XII) from an immune serum globulin (ISG) solution using an ion exchange material at a pH of ≧7.2.