27 Pumps , Valves & Liquid Handling New Guide to Pipetting Now Available
Gilson announces the availability of the third edition of its famous Guide to Pipetting. For nearly five decades, Gilson has been designing pipettes that exceed expectations when it comes to accurate and precise sample measurement. Gilson want to share our expertise in pipetting with you through The Gilson Guide to Pipetting, a book that serves as a great resource for selecting the right pipette for your application, pipetting best practices, pipetting techniques and more.
This updated third edition is easier to read with updated images and modern layout. The contents is as informative and detailed as the prior editions, providing precise data on pipetting, and new information, such as types of applications, samples, and vessels used in the laboratory. The result is a comprehensive pipetting guide.
This is more than just an overview of the pipetting process. Based on Gilson’s expertise in this field, a wealth of information on pipetting maintenance and applications is provided: how to find the best match of pipettes and tips, organise the work station with ergonomics in mind, prevent cross-contamination, etc.
The new Gilson Guide to Pipetting is available at
www.gilson.com/ggp.
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Repeat Performance
Move to a superior electronic pipette and get guaranteed performance in your applications, where repetitive pipetting demands reliability and reproducibility.
The Intuitive Dosing Pump for Aggressive and Corrosive Liquids
Dosing very aggressive and corrosive liquids in laboratories is a challenge. Diaphragm pumps are the ideal tool for this difficult task.
The new SIMDOS® 02 FT (PTFE) from KNF has been especially developed for the transfer of aggressive chemicals. To do this, the SIMDOS® 02 FT is fitted with a PTFE head, a PTFE-covered diaphragm, and chemically resistant FFKM Kalrez® valves. An optionally available Chemraz®-valve kit even allows using the pump with highly concentrated acids such as nitric, sulphuric and hydrochloric acids and solvents such as TFH, DMF, DMSO and MEK. The pump head is situated outside the splash-protected IP-65 housing, providing a very significant safety feature.
Also available with heads in PP or PVDF, the new
SIMDOS® 02 FT dosing pump transfers liquids with a flow rate of 30 µl to 20 ml/min, and dose volumes of 30 µl up to 999 ml. Following calibration, repeatability is +/-1% (full range) and the pump offers excellent long-term stability and consistent reliability throughout entire processes. The SIMDOS® 02 FT is safe to run dry and is self-priming up to 2 m. It is effective against pressures of up to 6 bar, and transfers viscous media up to 150 centistokes. The integrated software permits the transfer parameters to be modified for a range of different viscosities at the touch of a button. Thanks to its neat design and small footprint, the new SIMDOS® 02 FT dosing pump takes up very little valuable laboratory space.
SIMDOS® 02 FT highlights include: FT head / FFKM valves for aggressive and corrosive liquids; intuitive operation; fast and simple calibration; pause function without data loss; adjustable transfer parameters; splash-protected design for increased safety; minimal footprint.
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Workstation Achieves Reliable Liquid Transfers down to 80 Nanolitres
Researchers at Germany’s University of Konstanz have established an innovative technique to allow more cost- effective screening of small molecules. Using the Freedom EVO® workstation’s MultiChannel Arm™ 384 from Tecan, the University’s Screening Centre has achieved reliable liquid transfers down to just 80 nanolitres. Silke Müller, a biologist in the screening facility, explained: “We work with a wide range of samples – enzymes, mammalian cells, bacteria – using various high throughput screening assay formats according to the needs of individual research groups. Our Freedom EVO therefore needs to be very flexible in the types of assays we can perform.”
With a library of over 38,000 compounds for screening, the centre wanted to avoid the need for wasteful pre- dilution of stock solutions to enable large-scale studies to
be performed more cost-effectively. Silke continued: “The minimum transfer volume specified for the MCA 384 is 500 nl, but we needed to achieve reliable transfer of just 80 nl of liquid to meet our target final concentration per well. Using fixed steel tips, I developed a technique similar in principle to a pin tool device, relying on the residual liquid volume on the inside and outside of the tips following several aspiration and dispense cycles to provide very low volume transfers. Although the exact aspiration/ dispense volume and number of cycles needs to be optimised for each assay buffer, this method has proved highly reliable, with CVs of ~10 % for 80 nl transfers.”
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More information about Gilson guaranteed repetitive pipetting at
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Come and try PIPETMAN M at stand A3.315
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