... same.3. Hold the pipette vertical, set the button to the first stopping point, and put the ... liquid surface 2-3mm, then slowly release the button, waiting for 1-2 seconds, after that, take it out ... push the button to the first stopping point, waiting for 1-2 seconds, then push the button, exhaust all ... along the vessel wall, then slowly release the button, that is a complete operation process. 10-50ul ...