Prevent cross-contamination

Avoiding contamination between samples: During the pipetting process, the filter element can effectively prevent microorganisms, impurities and other substances in the samples from entering the interior of the pipette, thus preventing mutual contamination between different samples through the pipette. For instance, when conducting nucleic acid testing, if the nucleic acid solutions of different samples contaminate each other through pipettes, it will lead to inaccurate test results.

Prevent pipette contamination of samples: The pipette may contain substances from previous use inside. The filter element can prevent these residual substances from entering the samples to be drawn subsequently, ensuring the purity and accuracy of the samples. For instance, in cell culture experiments, if the pipette is contaminated by bacteria, using a pipette tip with a filter core can prevent bacteria from entering the cell culture medium and avoid cell contamination.

Protect the pipette

Blocking particulate matter: The filter element can intercept solid particles, crystalline substances, etc. in the sample, preventing them from entering the key components of the pipette such as the piston and sealing ring, thereby reducing the wear of these components and extending the service life of the pipette. For instance, when dealing with solutions containing suspended particles, the filter element can effectively block the particles and prevent them from damaging the precise components of the pipette.

Avoid liquid backflow damage: When the pipette is drawing liquid, if liquid backflow occurs, the filter element can absorb some of the liquid, reducing the amount of liquid entering the pipette and lowering the risk of pipette damage caused by backflow. For instance, when absorbing volatile liquids or performing operations that require rapid pipetting, the filter element can provide a certain buffering and protective effect.