| 发明名称 |
COMPOSITE MEMBRANES FOR SOLID PHASE EXTRACTIONS AND REACTIONS |
| 摘要 |
A solid phase extraction or chromatographic medium comprises a porous nonwov en fibrous matrix comprising at least one of polytetrafluoroethylene and blown microfibers, and sorptive or reactive hydrophobic siliceous molecular sieve particulates enmashed in said matrix, the ratio of molecular sieves to matrix being in the range of 40:1 t o 1:40.
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| 申请公布号 |
CA2193085(C) |
申请公布日期 |
2003.12.09 |
| 申请号 |
CA19952193085 |
申请日期 |
1995.06.02 |
| 申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
HAGEN, DONALD F.;HANSEN, PAUL E.;MARKELL, CRAIG G. |
| 分类号 |
G01N30/00;B01D15/00;B01D15/04;B01D15/08;B01D39/14;B01J20/18;B01J20/28;B01J20/281;G01N30/52;G01N30/93;(IPC1-7):B01J20/18;G01N30/48 |
主分类号 |
G01N30/00 |
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