| 摘要 |
<p>A wand assembly having an elongate rod (10) with a lower end having a groove (14) or grooves formed therein. When contacted with (e.g., touched to) a colony, the lower end is able to ingest a predetermined quantity of bacteria into the groove or grooves by capillary action. The wand assembly is particularly suitable for ingesting very small quantities of bacteria, e.g., on the order of 1 x 10<7> colony forming units, since it is provided with a collar (12) that is releasably attached to the rod, and can be detached from the rod after the lower end has been touched to a colony, in a manner that wipes excess, unwanted bacteria from the peripheral surface of the rod.</p> |
