| 摘要 |
<p>An improved process for preparing animal plasma fractions, particularly human plasma fractions, containing purified immune globulin (IgG) which is suitable for intravenous use comprises the use of a dilute solution containing IgG as starting material. This solution is subjected to a two stage process of separation, firstly on an anion exchange column containing an agarose cross-linked anionic exchange resin and secondly, on an anion exchange column containing a different anionic exchange resin. The eluate thus obtained contains pure IgG an may, if desired, be freeze-dried to provide a solid composition of matter containing IgG.</p> |
