Pipette Aspiration Rate and Storage
Hawach introduces pipettes from the pipetting speed of the pipette and precautions during storage.
First, the rate of liquid absorption. It is often seen in the laboratory that in order to “improve efficiency”, the user quickly releases the thumb during aspiration, which causes the liquid to quickly rush into the tip.
As everyone knows, this forces the liquid to form a turbulent state after entering the tip, so that for small and medium-range pipettes, a vapor mist that is invisible to the naked eye will enter the inside of the pipette, for a large-scale pipettes.
You will see the liquid flush directly into the inside of the pipette. The end result is contamination or even corrosion of the piston of the pipe tte, which is prone to cross-contamination of the sample and has an impact on accuracy.
Second, storage. A considerable number of users will put the pipettes directly on the test bench after the pipette is used. If it is neat, the pipette may be placed in the drawer. This is actually not good! During the pipetting operation, it is inevitable that liquid will enter the inside of the pipette.
In the flat state, these liquids will remain on the piston and other components, and after a long period of time, the piston will pollute the piston and even corrode the piston.
Persona a contactar : Bruce Lu, +86 29 89284429
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Domingo 08 julio 2012
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