Vivaspin centrifugal units are ideal for rapid concentration of proteins, peptides and other biomolecules from samples up to 20 ml. The vertical membrane design stands for high speed and min. membrane fouling. A unique deadstop pocket prevents the units from running dry. Vivaspin centrifugal concentrators guarantee high recovery of target molecules by use of membranes with low adsorption. A wide range of MWCO is available.