Tisch
PTFE Syringe Filters, 0.45um, 33mm, Luer-Lok/Luer Slip, Sterile, 100/Pk SKU: SF14477

Polytetrafluoroethylene (PTFE) Syringe Filters - SF14477

Featuring hydrophobic PTFE membrane technology in sterile packaging for high-volume aggressive organic solvent clarification requiring contamination-free processing. A 0.45µm pore configuration delivers efficient particulate removal while maintaining complete chemical inertness to concentrated acids, bases, and challenging reagents. Tisch Scientific combines ultra-resistant PTFE membranes with large 33mm construction to maximize throughput for production-scale sterile clarification of chemically aggressive samples.

Key Polytetrafluoroethylene (PTFE) Membrane Characteristics

• Hydrophobic membrane requires alcohol pre-wetting for aqueous solution compatibility
• Universal chemical resistance withstands all organic solvents, acids, and bases without degradation
• Exceptional thermal stability maintains integrity at 60°C continuous operating temperature
• 0.45µm pore size provides reliable clarification and coarse particulate removal
• Sterile individual packaging ensures contamination-free filtration for sensitive applications

Key Construction Characteristics

• Polypropylene housing delivers chemical resistance while withstanding 87psi burst pressure
• Dual Luer-Lok/Luer Slip compatibility accommodates all standard syringe configurations
• Large 33mm diameter maximizes filtration area for high-volume sterile sample processing
• 100µl holdup volume minimizes loss despite a larger format when filtering valuable reagents

SF14477 syringe filters achieve exceptional 59ml/min flow rates through an expanded 4.9cm² active membrane area, dramatically accelerating your high-volume sterile filtration workflows even with viscous organic solvents. Outstanding 120ml throughput capacity supports your production-scale requirements while maintaining certified sterility throughout processing. Pre-sterilized units maintain 7.25psi bubble point integrity in absolute ethyl alcohol, ensuring reliable performance for your critical large-volume applications demanding both absolute chemical resistance and validated contamination-free processing.

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

Bubble Point (psi)

7.25(absolute ethyl alcohol ）

Burst Pressure (psi)

87psi.

Connection Type

Luer-Lok/ Luer Slip

Construction

PP

Diameter

33mm

Filtration Area

4.9cm²

Flow Rate

59ml

Holdup Volume

100μL

Incompatibility

Aqueous samples without rewetting

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

Sterility

Sterile

Sterilization

Autoclave: 121°C for 30 minutes/ Gamma: 5kg, for 8 hours

Volume Throughput (ml)

120ml

Wetability

Hydrophobic

• Aggressive solvents - High-volume sterile clarification of THF, DMF, DMSO, chloroform, and acetonitrile for synthesis and purification
• HPLC sample prep - Sterile particulate removal from 50-120ml samples in organic mobile phases, protecting analytical columns from fouling
• Strong acid filtration - Sterile handling of concentrated HCl, H2SO4, HNO3, and TFA for method development and trace metal analysis batches
• Protein precipitation - Sterile clarification after TCA, methanol, or acetonitrile precipitation for proteomics and bioanalytical workflows
• Tissue culture - Bulk sterile filtration of ethanol, methanol, and organic fixatives for cell permeabilization and extraction protocols
• Pharmaceutical testing - Production-scale sterile sample preparation for dissolution testing in aggressive media and organic solvent systems