Lab ultrafiltration tips and tricks
20 Oct 2020The use of ultrafiltration membranes for concentration and purificationof proteins and DNA is ubiquitous in biological laboratories. Filter devices with ultrafiltration membranes can also be used for concentration of other macromolecules such as inorganic polymers, nanoparticles or even viruses. Although performing sample concentration and buffer exchange using an ultrafiltration device is relatively simple, some tricks of the trade can improve your recovery or speed up your work flow considerably.
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Vivaflow®
Sartorius GroupVivaflow® is the original plug-and-play tangential flow filtration (TFF) solution for handling samples up to 5 L in research and development laboratories.
Vivaspin® Turbo
Sartorius GroupClassical concentration and buffer exchange methods are labor intensive, generate excessive waste and suffer from sample loss and long process times. It can also be difficult to retrieve retentate samples from centrifugal ultrafilters when using standard pipette tips. To overcome these challenges, Sartorius has developed Vivaspin® Turbo - the ultimate range of centrifugal ultrafilters. These feature highly optimized designs and membrane options to offer the highest processing speeds, maximum biomolecule recoveries, and straightforward retentate retrieval.