| 摘要 |
<p>A sampling device comprises a plunger (10) longitudinally displaceable in one direction in a barrel (20) to draw a volume of liquid into the barrel, and then displaceable in the opposite direction to expel the volume of liquid, and also a volume of reagent contained in a compartment (14) of the plunger, through a filter (29). The device may be used to test for the presence of micro-organisms picked up by the liquid being sampled, which are captured by the filter upon expelling the sample from the device.</p> |
