Tisch
PTFE Hydrophilic Syringe Filters, 0.45um, 30mm, Luer-Lok/Luer Slip, Sterile, 100 /Pk SKU: SF18264

Polytetrafluoroethylene (PTFE) Syringe Filters - SF18264

When you're clarifying large-volume samples and need contamination-free handling, these 0.45µm hydrophilic PTFE filters remove particles while preserving your dissolved analytes. The hydrophilic surface processes aqueous samples immediately without pre-wetting, and the integrated polypropylene prefilter protects the membrane from large particles when processing turbid samples. The 30mm diameter with 4.9cm² filtration area handles up to 110ml volumes with just 100µL holdup volume. Pre-sterilized packaging means contamination-free handling right out of the package.

Key PTFE Membrane Characteristics

• 0.45µm pore size removes particles while preserving dissolved analytes for large-volume analytical measurements
• Hydrophilic surface modification eliminates pre-wetting requirements for immediate aqueous sample processing
• Broad chemical compatibility withstands analytical solvents across diverse laboratory applications
• Low protein binding minimizes sample loss when filtering biological solutions and protein samples
• Membrane thickness of 80-140µm provides structural stability for large-volume processing workflows

Key Construction Characteristics

• 100µL holdup volume balances sample recovery with practical handling for large-volume processing
• Pre-sterilized individual packaging provides contamination-free handling without autoclaving preparation
• 30mm diameter with 4.9cm² filtration area processes large sample volumes up to 110ml efficiently
• Integrated polypropylene prefilter extends membrane life by capturing large particles upstream

You can autoclave these filters at 121°C for 30 minutes when your protocols require pre-sterilization before use. Pre-sterilized packaging means you can start filtering immediately without preparation steps, important when processing multiple large-volume samples. The polypropylene prefilter extends membrane life when you're processing turbid or particulate-laden samples, and the 87psi burst pressure handles typical analytical workflows. The 21.75psi bubble point confirms consistent 0.45µm pore structure for reproducible particle removal across your clarification runs.

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

Bubble Point (psi)

21.75psi

Burst Pressure (psi)

87psi.

Connection Type

Luer-Lok/ Luer Slip

Construction

PP

Diameter

30mm

Filtration Area

4.9cm²

Flow Rate

59ml

Holdup Volume

100μL

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)

0.45

Prefilter (Yes/No)

Yes

Prefilter Material

PP

Sterility

Sterile

Volume Throughput (ml)

110ml

Weight

1.40

Wetability

Hydrophilic

• Environmental Water Analysis - Clarifies large-volume turbid samples for trace contaminant analysis with contamination-free handling in testing labs
• Pharmaceutical Quality Control - Processes bulk test samples for analytical procedures in controlled laboratory environments, requiring cleanliness
• Industrial Process Monitoring - Filters large-volume manufacturing samples for quality control testing with contamination-free handling protocols
• HPLC Sample Preparation - Clarifies high-volume analytical samples for chromatographic analysis, protecting columns from particulate contamination
• Food and Beverage Testing - Processes production samples for analytical testing in manufacturing quality control with contamination-free handling
• Research Laboratory Processing - Clarifies large experimental sample volumes requiring rapid throughput and contamination-free handling protocols