| 摘要 |
The invention relates to a positive displacement sampling pipette (1), comprising a control rod (8) the bottom end (16) of which controls the displacement of a device (20) for gripping the top end (86) of a piston (82) belonging to a capillary-piston assembly (84) intended to cooperate with said pipette, According to the invention, the pipette includes an ejection rod (86) of said capillary-piston assembly, movably mounted with respect to said control rod (8) such that its bottom end (54) can exert an ejection strain on the top end (86) of the piston (82) accommodated in the gripping device (20), during a relative displacement between the ejection rod (46) and the control rod (8). |
