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
• Chemical Resistance Platform - Maintains compatibility with aggressive analytical solvents while providing documented incompatibility guidelines
• 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
• Ready-to-Use Sterile Packaging - Individual sterile units eliminate pre-sterilization delays and reduce contamination risks in critical workflows
• 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

Wetability

Hydrophilic

• Analytical Micro-Standards Sterilization - Processes ultra-low volume reference materials and calibration solutions for precision analytical protocols
• Pharmaceutical Micro-Dosing Research - Sterilizes drug candidates and active compounds for precision dosing and bioavailability studies
• Clinical Diagnostic Micro-Samples - Filters precious patient specimens requiring absolute sterility with maximum sample recovery
• Research Grade Enzyme Preparation - Sterilizes ultra-low volume enzyme solutions and biochemical reagents for sensitive assays
• Mass Spectrometry Sample Prep - Prepares sterile micro-volume samples for LC-MS and analytical mass spectrometry applications
• Biotechnology Screening Assays - Sterilizes compound libraries and test solutions for high-value screening and discovery programs