Tisch
PTFE Hydrophilic Syringe Filters, 0.45um, 25mm, Luer-Lok/Luer Slip, Sterile, 100 /Pk SKU: SF18250

Polytetrafluoroethylene (PTFE) Syringe Filters - SF18250

When you're clarifying medium-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 biological samples. With 100µL holdup volume and 4.08cm² filtration area, you can process up to 50ml samples efficiently. Pre-sterilized packaging means contamination-free handling right out of the package.

Key PTFE Membrane Characteristics

• 0.45µm pore size removes particles and debris while preserving dissolved analytes for analytical accuracy
• Hydrophilic surface modification eliminates pre-wetting requirements for immediate aqueous sample processing
• Broad chemical compatibility withstands diverse analytical solvents across laboratory applications
• Low protein binding minimizes sample loss when filtering biological solutions and protein samples
• 21.75psi bubble point specification confirms consistent 0.45µm pore structure across production batches

Key Construction Characteristics

• 100µL holdup volume balances sample recovery with practical handling for medium-volume processing
• Pre-sterilized individual packaging provides contamination-free handling without autoclaving preparation
• 25mm diameter with 4.08cm² filtration area processes medium to large sample volumes up to 50ml
• 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, saving time when processing multiple samples. The polypropylene prefilter extends membrane life when you're processing particulate-laden biological 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.

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

25mm

Filtration Area

4.08cm²

Flow Rate

35ml

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)

50ml

Weight

0.88

Wetability

Hydrophilic

• HPLC Sample Clarification - Processes analytical samples with contamination-free handling for chromatographic analysis procedures
• Clinical Diagnostic Processing - Clarifies patient specimens for optical and spectroscopic analysis with contamination-free handling protocols
• Pharmaceutical Quality Control - Filters test samples for analytical procedures in controlled laboratory environments, requiring cleanliness
• Research Laboratory Processing - Clarifies experimental samples requiring both rapid throughput and contamination-free handling procedures
• Analytical Standards Preparation - Processes reference materials and calibration solutions with contamination-free handling for accurate measurements
• Biotechnology Sample Testing - Clarifies protein solutions and biological samples for downstream analytical testing procedures