Analysis Note

To view the Certificate of Analysis for this product, please visit www.cytiva.com.

Features and Benefits

Compatible pH range is from pH 1 to 9. Patented dead-stop technology, which ensures that samples cannot be concentrated to dryness and enables direct concentrate recovery One-step sample concentration in a single tube for minimal sample handling and reduced sample loss. Vertical polyethersulfone membrane minimizes membrane blockage and tolerates high flow rates.

General description

Designed for fast, nondenaturing concentration of biological samples by membrane ultrafiltration. Up to 30-fold concentration of the sample can be achieved with recovery of the target molecule typically exceeding 95%.Vivaspin^® sample concentrators are designed for fast, nondenaturing concentration of biological samples by membrane ultrafiltration. Up to 30-fold concentration of the sample can be achieved with recovery of the target molecule typically exceeding 95%. The entire process is performed in a single tube with an upper compartment containing sample and lower compartment separated by a semipermeable membrane with a molecular weight cut-off (MWCO) selected by the user. Centrifugation is applied to force solvent through the membrane, leaving a more concentrated sample in the upper chamber.Vivaspin^® sample concentrators cater for sample volumes from 100 µl to 20 ml, with a range of molecular weight cutoff values from Mr 3 000 to 100 000. For maximum recovery, select a MWCO at least 50% smaller than the molecular size of the species of interest

Legal Information

Vivaspin is a registered trademark of Sartorius Stedim Biotech GmbH