| 摘要 |
<p>A device for testing for the presence of an analyte in a liquid, which comprises an aperture 24 through which the liquid can be introduced; a filter including a viewable reaction zone 32 which receives 1iquid through the aperture 24, and which functions to separate the analyte (if present) from the liquid, and a peripheral zone 34; absorbent means 40 associated with the peripheral zone 34, but not the reaction zone 32, of the filter, whereby liquid is drawn from the reaction zone to the peripheral zone; and means 30,80 for retaining the filter in position beneath the aperture 24.</p> |
