Operating Instructions . Positive displacement pipettes: Positive displacement pipetting is based on direct contact of the piston with the liquid. The MICROMAN E, Gilson’s positive displacement pipette, solves this problem with disposable Capillary Pistons. Transfer Pipettes Since there is no air cushion between the piston and the aspirated sample, the physical properties of the samples do not affect the aspiration force. The semi-automated instruments use positive displacement to achieve highly accurate and precise fluid aspirations and dispenses. Unlike in air displacement pipettes, a blow-out step is not necessary for removing the residual sample from the tip. You can expect to achieve greater accuracy regardless of the temperature of your liquid samples. Thank you for visiting www.mt.com. After immersing the tip into the liquid, the operating button is released. Positive displacement pipettes offer an alternative to air displacement models. See Privacy Policy. The absence of an air cushion also makes positive displacement pipettes perfect for use with hot or cold samples. Ideal for viscous, toxic, organic, highly vaporized materials, samples. The piston of the pipette remains in contact with the liquid that’s aspirated, so there is no air between the piston and the liquid. In contrast with air displacement pipettes, the piston is in direct contact with the aspirated liquid. Unlike air displacement pipettes, the piston of the Transferpettor directly expels the media from the tip, wiping the tip walls completely… An air displacement pipette may work with high accuracy when measuring small volumes of aqueous and non-viscous liquids in the laboratory but when it comes to liquids that are difficult to handle (e.g., viscous, dense, volatile, corrosive, high pressure and/or radioactive liquids), your best bet would be a positive displacement pipette. Unique trigger action pipette eliminates thumb fatigue. …Transferpettor™ positive displacement pipette is the best tool for use with liquids that render traditional air-displacement pipettes ineffective. In a hurry? In addition, positive displacement pipettes are fitted with a disposable capillary/piston or CP tip, so there is little risk of contaminating the pipette or the other samples in the lab. BT Lab Systems is a Geno Technology, Inc. USA brand designed to offer high quality benchtop equipment routinely used in life science, biotechnology and proteomic research. A large screen provides complete access to all features for simple dispensing, auto dispensing, or single volume positive displacement pipetting, with the ability to save favorites.…, ©Thomas Scientific 2020 All Rights Reserved. Take a look at the quality and features they can bring to your lab’s tool inventory today. Roxy M™ Repeating Pipettor and Universal Fit Roxy M™ Repeating Pipettor Tips, MICROMAN® E Positive-Displacement Pipettors, CBT. But what makes these pipettes ideal for this purpose and how do they work? Thank you for your interest in Gilson products. Serological Pipettes. Volume Range100 μl–1000 μl.