| 摘要 |
PCT No. PCT/SE90/00442 Sec. 371 Date Dec. 24, 1991 Sec. 102(e) Date Dec. 24, 1991 PCT Filed Jun. 20, 1990 PCT Pub. No. WO91/00290 PCT Pub. Date Jan. 10, 1991.A method is provided for cleansing a protein from multivalent metal ions bound thereto, these ions being released from the protein by exchanging the ions with monovalent metal ions, whereafter the multivalent metal ions are removed. The release and removal of these ions is effected, in particular, by diafiltration or gel filtration processes.
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