Positive Displacement Pipette
Problem-Free Pipetting of Challenging Liquids
A positive displacement pipette eliminates cross-contamination from aerosols, samples or other pipettes. The Pos-D positive displacement pipette is a smart solution for pipetting "difficult" liquids, such as dense, viscous and volatile samples. Pos-D is specially suited for liquids with high densities, viscosities or vapor pressures. A disposable piston, which moves within a plastic capillary, makes direct contact with the liquid.
Advantages of the Positive Displacement Pipette
A simple ergonomic finger hook allows you to rest your hand while you work.
The display faces the user, so there is no need to twist the pipette to set or read volume.
The Pos-D handle has a natural feel and fits comfortably in your hand due to larger and more ergonomically designed handle.
How does a positive displacement pipette work?
Positive displacement pipettes make direct contact with solution eliminating inaccuracies found with air displacement pipettes and hard-to-pipette solutions. With direct contact to solutions, positive displacement pipettes deliver accurate aliquots of hard-to-pipette solutions such as volatile, viscous, corrosive or high salt solutions.