Tisch
PTFE Syringe Filters, Hydrophilic, 0.22um, 4mm, Luer-Lok/Luer Slip, Sterile, 100 /Pk SKU: SF18245

Polytetrafluoroethylene (PTFE) Syringe Filters - SF18245

Advanced 0.22μm PTFE membrane technology with hydrophilic surface modification delivers absolute bacterial retention through validated 43.51psi bubble point specifications. The ultra-compact 4mm diameter platform provides a 0.125cm² filtration area, optimized for micro-volume processing up to 1ml. With controlled 0.7 ml/min flow rates, it ensures precise handling for sensitive samples. Designed for precision analytical chemistry and pharmaceutical micro-dosing, this filter allows immediate sterile processing without dilution risks. Quality validation confirms integrity, while the 1μL minimal holdup volume ensures maximum recovery in workflows where every microliter counts.

Key PTFE Membrane Characteristics

• Validated 0.22μm Bacterial Retention - Delivers absolute sterile filtration with 43.51psi bubble point validation for critical micro-volume applications
• Hydrophilic Surface Engineering - Modified fluoropolymer chemistry eliminates pre-wetting requirements, enabling immediate aqueous sample processing
• Exceptional chemical resistance maintains stability across aggressive analytical solvents, strong acids, bases, and diverse organic compounds
• Ultra-Low Protein Binding - Maintains concentration of proteins and biologics through minimal surface adsorption in micro-volume processing
• Engineered Membrane Depth - 80-140μm thickness provides structural stability while maintaining precise flow control characteristics

Key Construction Characteristics

• 1μL Ultra-Minimal Holdup Volume - Optimizes yield through precision dead space engineering, maximizing recovery of ultra-precious micro-specimens
• Pre-sterilized by gamma irradiation and individually packaged, eliminating preparation steps for immediate use in contamination-free sterile applications
• Ultra-Compact 4mm Platform - 0.125cm² effective area provides precise control for micro-volume samples requiring absolute sterility
• Integrated Polypropylene Prefilter - Protects the primary membrane from particulate damage while maintaining controlled flow characteristics

Engineered for your most precious micro-volume sterile filtration requirements, this hydrophilic PTFE system delivers quality assurance through 87psi structural integrity ratings. It maintains validated bacterial retention for critical safety. Your laboratory achieves maximum sample recovery through a 1μL ultra-minimal holdup design combined with ready-to-use sterile packaging. You'll experience reliable performance in demanding applications where every microliter of sample represents irreplaceable research value.

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

Bubble Point (psi)

43.51psi

Burst Pressure (psi)

87psi.

Connection Type

Luer-Lok/ Luer Slip

Construction

PP

Diameter

4mm

Filtration Area

0.125cm²

Flow Rate

0.7ml

Holdup Volume

1μL

Incompatibility

Bases, esters, ethers, ketones

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

87psi

Maximum Operating Temperature (°C)

60°C

Membrane Thickness (µm)

80-140μm

Pack Count

100

Pore Size (µm)

0.22

Prefilter (Yes/No)

Yes

Prefilter Material

PP

Sterility

Sterile

Volume Throughput (ml)

1ml

Weight

0.33

Wetability

Hydrophilic

• Analytical Reference Standards - Sterilizes ultra-low volume calibration solutions for critical pharmaceutical QC workflows
• Pharmaceutical Micro-Dosing Research - Removes bacteria from drug candidates while preserving concentration for bioavailability studies
• Clinical Diagnostic Specimens - Sterilizes precious patient micro-samples to maximize recovery for sensitive diagnostic assays
• Enzyme Solution Preparation - Filters ultra-low volume biochemical reagents to remove contamination for molecular biology applications
• Mass Spectrometry Sample Prep - Sterilizes micro-volume samples for LC-MS analysis, ensuring contamination-free processing and high recovery
• Biotechnology Screening Programs - Removes bacteria from compound libraries while conserving precious materials for drug discovery