| 摘要 |
The present invention relates to a device for capturing a repeatable volume of a source liquid, the device comprising:
an elongated body (27) having an outer surface (112) and an interior wall (104) defining an internal cavity (33, 102) open at a lower end (106) of the body;
the body defining an opening (12) in an upper portion (108) of the body, through which air can be drawn from the channel (33, 102) to draw liquids into the cavity (33, 102) through the lower end (106) of the body;
wherein the portion of the interior wall (40) defining the internal cavity also defines a pocket (13, 26, 28, 29, 34, 35, 38) open to the internal cavity, the pocket (13, 26, 28, 29, 34, 35, 38) sized to collect and retain, particularly by use of capillary force, a metered dose of a liquid drawn into the channel (33, 102) as the channel (33, 102) is otherwise evacuated. |
