Home » News » HPLC Syringe Filter » Common use membrane hplc syringe filter price Whatman Puradisc Spartan HPLC Syringe Filter, 30 mm, 0.45 µm Whatman’s Puradisc syringe filters are made to serve a wide variety of applications including capillary electrophoresis, biological preparations, protein filtration, and UV spectroscopy sample