Spectrum Sterile PTFE Syringe Filters, Porosity 0.22 um, Diameter 25 mm, GF prefilter

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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