| 发明名称 |
Process for the purification of opacifying contrast agents |
| 摘要 |
A process for the purification of opacifying contrastographic agents, comprising chromatographic and nanofiltration techniques combined together, the subsequent chromatographic separation of the crude product solution and a nanofiltration step, with a final deionization on ion exchange resins.
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| 申请公布号 |
US5811581(A) |
申请公布日期 |
1998.09.22 |
| 申请号 |
US19970804118 |
申请日期 |
1997.02.20 |
| 申请人 |
DIBRA S.P.A. |
发明人 |
PIVA, RODOLFO;VISCARDI, CARLO FELICE;GAGNA, MASSIMO |
| 分类号 |
A61K49/04;B01D61/02;(IPC1-7):A61K49/04;C07C233/64 |
主分类号 |
A61K49/04 |
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