When the pipette tips are put on the pipette, many people will knock hard on the pipette box. This is wrong because it will cause the internal parts of the pipette tips to become loose due to the instantaneous impact force produced by the tapping, and even cause the scale adjustment knob to jam.
The correct method is to insert the liquid transfer device vertically into the pipette tip and to tightly integrate it by slightly turning left and right. The tightening mark of the pipette tip is slightly over the O-ring, and a clear sealing ring can be seen in the connecting part.
The above-mentioned operation method can be simply summarized as the following three steps:
1. Single-channel pipette, the pipette end is inserted vertically into the suction head, slightly rotated left and right, and tightened.
1. Single-channel pipette, the pipette end is inserted vertically into the suction head, slightly rotated left and right, and tightened.
2. Do not tighten the suction head by repeatedly hitting the pipette, so as to avoid the knob of the adjustment scale is stuck.
3. Multichannel pipette, the first channel of the pipette is aligned with the first suction head, tilted insertion, shaking slightly before and after tightening, suction head inserted slightly more than O-ring can be.
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