Piston pipettes for difficult media
For foaming media (e.g. tenside solutions), high-vapour-pressure media (e.g. alcohols, ether, hydrocarbons), viscous media and high-density media (e.g. concentrated protein solutions, oils, resins, fats, glycerine, mercury, sulphuric acid).
Unlike air displacement pipettes, the piston of the positive displacement pipette is in direct contact with the liquid to be pipetted. This principle always provides precise reproducible results, regardless of the pipetting speed and the ambient conditions. Capillaries and tips can be reused, since the minimal residual wetting is negligible for most applications. Where carry-over is not permitted, such as with infectious or radioactive media, air displacement pipettes with disposable tips should be used.
With DE-M marking and quality certificate.
Volume | 200 to 1000 µl |
Graduation | 1,0 µl |
Correctness | 1000 µl ≤0,5 % |
Variation coefficient | 1000 µl ≤0,2 % |
Colour coding | yellow |