ultrafiltration centrifuge tube

sartorius vs2042 Vivaspin 20，100,000 MWCO PESUltrafiltration centrifuge tube:

Improved Vivaspin ® 20 centrifugal concentration tubes have more flexible sample processing capacity and better performance. Vivaspin ® The processing capacity of 20 can reach 20ml, and when using a 25 ° rotor, 14ml of sample can be processed, suitable for 50ml centrifuge tube rotors.

ultrafiltration centrifuge tubeVivaspin ® 20 has a dual row vertical membrane structure, which results in faster ultrafiltration speed and a concentration factor of over 100 times. The concentration tube is marked with a scale, which can directly read the volume of the concentrated solution. Improved dead volume collector makes it easier to recover concentrated solution using a pipette. Vivaspin ® 20 designed accessories make its operation more flexible. After sample concentration, a one-step desalination process is carried out by filling the filter cup of the concentration device with buffer solution and achieving a desalination rate of 98% after a single centrifugation. In traditional methods, the complex operation process of refilling buffer solution and multiple centrifugation is required, and the results obtained are the same as those of secondary centrifugation. This method can be used when there is no centrifuge, or when only one sample is processed, or when pressurized ultrafiltration is used.

Vivaspin ® Add no more than 15ml of sample to 20, pressurize and let it stand to achieve ultrafiltration concentration. If the ultrafiltration speed needs to be accelerated, the pressure centrifugation method can be used, which involves pressurizing and then centrifuging. Pressure centrifugation is particularly suitable when the sample is difficult to filter, viscous (such as serum), or when the operating temperature is low and affects the filtration rate, and when ultrafiltration needs to be completed in a short period of time.