Use pipettes to accurately measure small volumes of liquid. Heres how to use the pipet filler.
Place the tip of the pipet into the receiving vessel and remove your finger to allow the liquid to drain.
How to use a pipette bulb.
In order for the pipet to deliver the proper amount of solution it must be properly cleaned.
Then with the tip of the pipette submerged in the water gently relax the bulb to draw water up into the pipette.
Allow the level of the fluid in the pipette to rise a couple centimeters above the line or mark on the side.
Remove the bulb and allow the water to drain.
Touch the pipet to the surface of the liquid or side of the container to remove any partial drops still clinging to the pipet.
Touch the pipet once to the side of the vessel.
Drawing up volumes of liquid with pipettes.
Most pipets are calibrated to account for this liquid.
Pipettes function as tiny straws that suck up a liquid into the vacuum of its internal holding space.
There will be a small amount of liquid in the tip.
If you wish to extract a very precise yet small volume of liquid a pipette is the tool youll likely use.
This demonstration is intended for and should only be performed by certified science instructors in a safe laboratoryclassroom setting.
Using the appropriate technique for filling the pipet draw distilled water into the pipet until it almost reaches the bulb.
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