Whatman Puradisc 4 mm Nylon Syringe Filters, 0.45 µm, 100 Pack, 6789-0404 (DISCONTINUED)

Whatman 4 mm Puradisc Filters are produced from pigment-free polypropylene with standard inlet (female luer lock) and outlet (male luer) connections. Options include a sterile, medical-grade blister pack for critical applications and a special tube tip outlet that allows the sample to be accurately dispensed into a micro-vial, eliminating air lock.

This Puradisc 4 syringe filter combines premium quality with economic efficiency. They are well suited for rapid, routine syringe filtration of samples Up to 2 ml. 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.

This model has a 0.40.45 µm pore nylon membrane that is hydrophilic, flexible, tear-resistant, and autoclavable. They are resistant to a range of organic solvents and are perfect for use with high pH samples. Nylon binds proteins, which makes it unsuitable for protein recovery applications.