Microporous filter membrane is mainly used for mobile phase and sample filtration in the process of chromatographic analysis, especially to prevent the pollution of chromatographic column, infusion pump system and sample valve. They are widely used in gravimetric analysis, microanalysis, colloidal separation and sterility test. Filter membranes made of different materials can be provided, such as polyether sulfone (PES), nylon 6, nylon 66, MCE and polytetrafluoroethylene (PTFE), PVDF, etc.
Polyethersulfone (PES) membranes are hydrophilic, low protein binding and stable at alkaline pH. The pore diameter of PES membrane is 0.8 μ m. Recommended for aqueous applications and biological samples. They are also another option for users who need filters with very low protein binding properties. This film is imported from membrana company in Germany.