LabExact
PTFE Syringe Filter, Hydrophobic, 0.22 µm, 4mm, Luer-Lok, Nonsterile, 200/Pk SKU: LE-IWT-ES-10603

Featuring hydrophobic PTFE membrane technology delivering exceptional chemical compatibility for filtration of organic solvents, harsh chemicals, and nonaqueous samples. The 0.22µm pore structure provides precise particulate retention while maintaining inherent hydrophobic characteristics optimal for nonpolar liquid and gas processing. Excellent chemical compatibility including strong acids, bases, and oxidizers enables reliable performance across diverse analytical applications from HPLC sample preparation to chromatography solvent degassing.

Key PTFE Membrane Characteristics

• Inherently hydrophobic surface chemistry resists aqueous wetting while delivering superior flow performance for organic solvents
• Outstanding chemical resistance to acids, bases, and aggressive solvents that destroy alternative membrane materials
• Ultra-low extractables minimize sample contamination during critical analytical procedures requiring high purity results
• 0.22µm absolute pore rating ensures consistent particle retention with excellent unit-to-unit reproducibility
• Maximum recommended operating temperature of 60°C maintains structural integrity under moderate processing conditions

Key Construction Characteristics

• Ultrasonically bonded housing construction ensures leak-free operation and eliminates adhesive contamination risks
• Luer-Lok® connection provides secure attachment while accommodating standard laboratory syringes and equipment
• 4mm diameter format optimized for small volume samples while minimizing holdup volume and sample loss
• Clear filter media identification inscribed on barrel eliminates confusion during multi-filter analytical protocols
• Concentric funnel-shaped barrel design increases volume capacity while decreasing back pressure for improved flow rates

These filters excel in viscous organic-based HPLC sample filtration, accelerating your analytical workflows while protecting sensitive chromatography columns from particulate contamination. Hydrophobic membrane with the highest chemical compatibility rating makes them ideal for aerosol sampling, vacuum pump line protection, and moisture barrier venting applications. After alcohol pre-wetting protocols, these filters adapt for aqueous and mild organic solution processing in ion chromatography, delivering the analytical flexibility your laboratory demands for both routine and specialized filtration requirements.