| abstract |
A process for preparing immunoglobulin suitable for intravenous injection, comprising treating with an acid a plasma or fraction I+II+III, fraction II+III, fraction II, or fraction III (in the application these are sometimes referred to collectively as starting material) obtained from plasma by Cohn's cold alcohol fractionation method, and subjecting to fractionation using an alkylene oxide polymer or copolymer having a molecular weight of 2,000 to 20,000. |