| 摘要 |
There is described a filter unit (10) which comprises a hollow fibre membrane fixed into a solid plug (6) and able to communicate with each side of the plug (6). Utilisation of the hollow fibre membrane enables a relatively large filtration area to be exposed to the sample, thus facilitating filtration. For example, the hollow fibre membranes may be in the shape of hoops (4), having their ends (5, 5') passing through the plug (6) and exposed on the far side thereof. The plug (6) is desirably formed from cured adhesive. The filter unit (10) may be located in each well (2) of a conventional filter tray (1) or may be located in the lumen of a filtration apparatus such as a pipette (11). Optionally the membrane may be treated or coated to react with a component of the sample. |
