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, ensuring complete sterile filtration performance for ultra-low volume analytical applications. Ultra-compact 4mm diameter platform provides 0.125cm² precision filtration area optimized for micro-volume processing up to 1ml capacity with controlled 0.7ml flow rates for sensitive sample handling. Precision analytical chemistry, pharmaceutical micro-dosing research, and specialized biological testing applications demand immediate sterile processing of precious micro-samples without dilution or contamination risks. Quality validation protocols confirm membrane integrity through rigorous bubble point testing, while 1μL minimal holdup volume specifications ensure maximum recovery in ultra-low volume workflows where every microliter of sample represents significant value and cannot be sacrificed to dead space losses.

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 while maintaining validated bacterial retention. Your laboratory achieves maximum sample recovery through 1μL ultra-minimal holdup design and immediate processing capability through ready-to-use sterile packaging, ensuring reliable performance across demanding analytical applications where every microliter of sample represents irreplaceable research value and absolute sterility cannot be compromised.

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 and certified reference materials for pharmaceutical validation and quality control
• Pharmaceutical Micro-Dosing Research - Filters drug candidates and active compounds, removing bacteria while preserving concentration for precision bioavailability studies
• Clinical Diagnostic Specimens - Sterilizes precious patient micro-samples, maximizing recovery for microbiological testing and diagnostic assay protocols
• Enzyme Solution Preparation - Filters ultra-low volume biochemical reagents and enzyme stocks, removing contamination for sensitive molecular biology applications
• Mass Spectrometry Sample Prep - Sterilizes micro-volume analytical samples for LC-MS analysis, ensuring contamination-free processing and maximum recovery
• Biotechnology Screening Programs - Filters compound libraries and test solutions, removing bacteria while conserving precious materials in drug discovery workflows