Puradisc™ syringe filters for routine syringe filtration, from Cytiva Whatman™

Puradisc™ syringe filters cater to a wide variety of sample types and applications, including capillary electrophoresis, biological preparations, protein filtration, and UV spectroscopy sample preparation. Different Puradisc™ membrane media support diverse chemical solvents and compounds. Cytiva's Whatman™ Puradisc™ line is a comprehensive syringe filter portfolio used in a variety of applications.

Polytetrafluorethylene (PTFE): Cytiva's Puradisc™ PTFE syringe filter is a hydrophobic membrane that is chemically stable and inert. It exhibits low protein binding, and its main application is filtration of non-aqueous samples. Prior to filtering of aqueous samples, the membrane must be pre-wetted with a water-miscible organic solvent.