Sartorius Vivaspin Turbo 15 ultrafiltration device

The disposable Vivaspin Turbo 15 is suited for protein, virus or nanoparticle concentration as well as desalting, dialysis and buffer exchange. It is available in a range of volumes from 4 to 15 mL and permits quick, easy and complete recovery of the concentrate.

Lab technicians can concentrate biological samples within 10 to 30 min and obtain macromolecular recoveries greater than 95%. In a single spin, 15 mL solutions can be concentrated up to 150 times. High flow rates are achieved due to the twin vertical membranes, which minimise protein polarisation and subsequent fouling of the membrane. The optimised design and sleek internal profile of the product ensures maximum process speeds down to the last few microlitres.

The 100 µL dead-stop pocket is easy to access with standard 200 µL pipette tips due to the angular design of the product. It eliminates the risk of the sample running to dryness while allowing high recovery of the concentrate. The use of highly chemically resistant plastic materials, such as polystyrene and polypropylene, is said to guarantee a stable shelf life, even in humid environments. Polyethersulfone membranes are preferred for their low fouling characteristics, high flux and broad pH compatibility. The combination of polyethersulfone, polystyrene and polypropylene enables the units to be readily sterilised and depyrogenated.