Whatman™ Puradisc™ non-sterile syringe filters with nylon membrane combine premium quality with economic efficiency.
4 mm, 13 mm, and 25 mm syringe filter diameter to suit sample volumes
Range of pore sizes for retaining a variety of particles
Optional sterile, medical-grade blister pack
Optional tube-tip format for accurate dispensing into a micro-vial
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 membrane media support diverse chemical solvents and compounds.
Nylon membrane filter options
Nylon membrane filters are hydrophilic, flexible, tear-resistant, and autoclavable. They are resistant to a range of organic solvents and suitable for use with high pH samples. Nylon binds proteins, which makes it unsuitable for protein recovery applications.
Puradisc is available in the following membrane materials: regenerated cellulose (RC), cellulose nitrate, nylon, polytetrafluoroethylene (PTFE), polyethersulfone (PES), polypropylene, polyvinylidene difluoride (PVDF), and cellulose acetate.
Cytiva also offers high-performance GD/X syringe filters with a multi-layer glass fiber prefilter for filtering larger volumes of harder-to-filter samples
