| 摘要 |
PCT No. PCT/EP96/00636 Sec. 371 Date Nov. 26, 1997 Sec. 102(e) Date Nov. 26, 1997 PCT Filed Feb. 14, 1996 PCT Pub. No. WO96/27003 PCT Pub. Date Sep. 6, 1996A process for the preparation of factor IX from a biological source by chromatography involves prior treatment with ammonium sulfate as a protein precipitant at a concentration of from 1.5-2.3 mol/l. |
