Sartorius offers a broad range of ultrafiltration membrane discs for sample concentration in your stirred cells. You can choose from membrane discs from 13 mm to 300 mm in diameter, pore sizes from 1 to 300 kilodaltons and three different membrane materials depending on the application.
Regenerated cellulose (RC):
Highly hydrophilic and often preferred for its higher protein recovery when processing very dilute solutions. Characterized by extended chemical resistance, ease of cleaning, and autoclavability.