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Home Rainin Liquid Handling Solutions Pipettes Specialty Pipettes Positive Displacement Pipette
Home Rainin Liquid Handling Solutions Pipettes Specialty Pipettes Positive Displacement Pipette

Positive Displacement Pipette

Problem-Free Pipetting of Challenging Liquids

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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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Documents

Pos-D Positive-Displacement Pipette Manual Operating Instructions
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
Pos-D DS
Datasheet of Pos-D Rainin pipetting solution
Positive Displacement Pipetting
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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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. 

What are the benefits of positive displacement pipetting?

Positive displacement pipettes are a highly advantageous tool in laboratory settings, offering unparalleled accuracy when handling viscous or volatile substances. With each stroke of our Rainin capillary-piston, a precise volume is dispensed, ensuring exact executions throughout the entire process. This not only minimizes errors but also reduces re-work time. Moreover, positive displacement pipetting places safety at the forefront by mitigating the risk of contamination and exposure to hazardous materials. Disposable tips are replaced after each use, thereby preventing cross-contamination and the need for repeated attempts. The combined benefits of accuracy, safety, and efficiency make positive displacement pipetting the preferred method for precise liquid handling, meriting their wide use in research, clinical testing, and other scientific endeavors.