Whatman™ Puradisc™ syringe filters, also called ReZist®.
Special Tube Tip outlet allows the sample to be accurately dispensed into a micro-vial or for other microfluidic purposes, eliminating air lock.
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.