Positive Displacement Pipette | Pos-D | Rainin
positive displacement pipette

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.

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Advantages of the Positive Displacement Pipette


Pos-D Positive-Displacement Pipette Manual Operating Instructions
This manual provides a complete overview of the operating instructions for the Pos-D Positive-Displacement Pipette.
Pos-D DS
Datasheet of Pos-D Rainin pipetting solution
Positive Displacement Pipetting
We will review three recently published papers where positive displacement pipettes played a critical role. These serve as good examples on how these...
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Expert Service – Tailored to Fit Your Pipetting Needs

METTLER TOLEDO supports and services your pipettes through their entire life-cycle, from good pipetting techniques to preventive maintenance and calibration to equipment repair.

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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.