Save Money with our Great Line of Filters for the Separations Lab See our Syringe Filters for Great Value Click below for more information   • Filters, HPLC Column Saver • Filters, Last Drop™ • Filters, Membrane, 47mm • Filters, Mobile Phase Inlet • Filters, Syringe • Filters, Syringe, High Throughput • HPLC Column, Inline • PreFilters, HPLC Column • Sparging Stones, Stainless Steel • Syringe Filters • Syringes, Laboratory, Plastic Our Nylon syringe filters for HPLC and Dissolution testing are pre tested for HPLC to assure that there are no extractables. We also test to make sure that our membrane does not have any charge to it that could remove charged analytes during filtration. Each filter comes with a Certificate of Analysis on request.