Tisch
PTFE Hydrophilic Syringe Filters, 0.45um, 4mm, Luer-Lok/Luer Slip, Sterile, 100 /Pk SKU: SF18246

Polytetrafluoroethylene (PTFE) Syringe Filters - SF18246

When you're working with ultra-small sample volumes where every microliter matters, this 4mm hydrophilic PTFE filter gives you exceptional recovery—just 1μL holdup means almost nothing stays behind. The 0.45μm pore removes particles without clogging on biological matrices while maintaining rapid flow. Since it arrives in sterile packaging, you get contamination-free handling for sensitive work, though remember this is clarification, not bacterial removal. The 0.125cm² area handles your precious micro-samples efficiently while the prefilter protects against premature fouling. For micro-volume clarification where sample loss is your biggest constraint, you're getting maximum recovery in the smallest practical format.

Key PTFE Membrane Characteristics

Validated 0.45μm Clarification Performance - Removes interfering particles while maintaining dissolved component passage for accurate micro-volume analytical measurements
Hydrophilic Surface Engineering - Modified fluoropolymer eliminates pre-wetting requirements, enabling immediate processing of aqueous micro-samples
Chemical Stability Platform - Resists degradation from analytical solvents while maintaining documented incompatibility awareness for operational safety
Low Protein Binding Characteristics - Preserves concentration of proteins and biologics through minimal surface adsorption in micro-volume processing
21.75psi Bubble Point Validation - Ensures consistent pore structure integrity and clarification performance across manufacturing batches

Key Construction Characteristics

1μL Ultra-Minimal Holdup Volume - Optimizes yield through precision dead space engineering, maximizing recovery of ultra-precious micro-specimens
Ready-to-Use Sterile Packaging - Individual sterile units eliminate contamination risks and pre-handling delays in sensitive workflows
Ultra-Compact 4mm Platform - 0.125cm² effective area provides precise clarification control for micro-volume samples requiring clean handling
Integrated Polypropylene Prefilter - Protects primary membrane from particulate damage while maintaining controlled 1.5ml flow characteristics

When sample volume is measured in microliters and you can't afford to lose any, this filter's 1μL holdup gives you maximum recovery. You're clarifying particles while preserving nearly all your precious material—critical when you're working with irreplaceable clinical specimens or research compounds. The sterile packaging means clean handling from the start, and the 1.5ml controlled flow rate lets you process carefully without rushing. With 87psi burst pressure backing you up, you can apply the pressure needed to push viscous samples through. For micro-analytical work where every drop counts, you're getting reliable clarification with minimal loss.

For more information about chemical and material compatibility, please review our Chemical Compatibility Chart.