| 摘要 |
This invention relates to a device for testing a specimen comprising a liquid input means having a receiving inlet and a discharge aperture, filter means positioned below the input means having at least one reaction zone for receiving liquid from the input means and at least one peripheral zone associated with the at least one reaction zone, absorbent means associated with only the peripheral zone of the filter means, and retainer means for holding the filter means in position below the liquid input means such that the at least one reaction zone receives liquid therefrom. |
