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The Ideal Solution For Pipetting Difficult Liquids
Pipetting problem liquids such as foaming, viscous, volatile, dense, corrosive, or hazardous solutions can be a real challenge when using air-cushion pipettes. The properties of these liquids can affect the precision and impair the reproducibility of the user’s results. Additionally, there is the risk of pipette contamination or even damage by aggressive liquids and aerosols.
These risks can be conveniently eliminated by using a positive-displacement system like the Eppendorf Multipette®
M4 (US/CAN: Repeater® M4) and Combitips advanced® dispenser tips. For more than
30 years, the Multipette/Combitip system has helped users speed up long pipetting series and handle difficult liquids.
The latest model, the Multipette M4, offers a unique volume range of 1 µL-10 mL, and is the only mechanical dispenser that dispenses the aspirated liquid up to 100 times without refilling the Combitip. The innovative step counter supports error-free working even after an interruption or distraction during the dispensing procedure. A fully emptied Combitip can be easily ejected with one hand using the operation lever without directly touching the tip. An essential feature that contributes to the system’s outstanding ease of use is the automatic Combitip recognition by the Multipette’s built-in sensor which eliminates time consuming volume calculations and the risk of dispensing the wrong volume.
The syringe style Combitip advanced is the ideal system component for all mechanic and electronic Eppendorf Multipette models. Its positive-displacement principle maximises pipetting accuracy and precision independent of the liquid’s properties. Thus the Combitip advanced can help avoiding most manual pipetting errors. In addition, the hermetically sealed piston securely prevents aerosol contamination.
The nine available volume Combitip sizes (0.1 mL-50 mL) offer a maximum range of dispensing volumes with increments as low as 100 nanolitres depending on the Combitip used. Elongated tips in volumes 2.5 mL, 5.0 mL, and 10 mL allow for complete emptying of the most common laboratory vessels to prevent sample loss.
Combitips advanced are offered in three different purity grades (Eppendorf Quality™, PCR clean, and Biopur®
) to support a great variety of applications. The individual colour coding on the Combitip and the packaging facilitates the quick identification of the desired size. Combitips advanced are made of virgin polypropylene. During production, neither plasticisers, nor biocides or mould release agents are used, since especially these additives have been linked to ‘leaching’ effects which can exert a strong negative impact on experiments. Combitips advanced are also slip agent-free.
Conclusion: The Eppendorf Multipette/Combitips advanced system is an indispensable tool for quick and precise dispensing of long series. In addition, it is the tool of choice for the safe pipetting of problematic or hazardous liquids.
During the new Eppendorf Advantage™ promotion, running from September 1 until December 31, 2016, customers can save 20% on the Multipette M4 as well as on Combitips advanced.
More information can be found at
www.eppendorf.com/advantage
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