Spectrum Sterile PTFE Syringe Filters, Porosity 0.45 um, Diameter 25 mm, Hydrophilic

Spectrum High quality and cost effective, these Polytetrafluoroethylene (PTFE) syringe filters are HPLC certified and available in both a hydrophilic and hydrophobic version.

• PTFE membranes are inherently hydrophobic; they are ideal for the filtration of nonpolar liquids and gases.
• Very resistant to solvents as well as acids or bases.
• Can be made more hydrophilic by flushing with alcohol, followed by water
• Used for filtering and de-gassing chromatography solvents
• Permits optimal utilization of small sample volumes
• Excellent chemical compatibility for filtering harsh chemicals that destroy other membrane materials
• Moisture barrier for venting applications and vacuum pump line protection
• Ideal for aerosol sampling
• Filter viscous organic based HPLC samples
• Glass microfiber prefilter raises absorption capacity and loading
• After pre-wetting with alcohol, may be used for fine particle removal of aqueous and mild organic solutions in Ion Chromatography
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