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

Tisch Scientific PTFE Syringe Filters, 0.45 µm, 33 mm, 100/Pk - SF14477

Tisch Scientific offers competitive pricing across its filtration catalog, helping cost-conscious laboratories keep supply budgets in check. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. PTFE filters aggressive organic solvents without swelling or breakdown while withstanding aggressive organics that degrade other media and holds consistent absolute retention at the rated pore size. Polypropylene construction holds extractable contribution low for sensitive analyses while resisting degradation from routine sample matrices and maintains a low-dead-volume internal flow path. When chromatographic methods demand particle-free injections, point-of-use syringe filtration clarifies the sample before it reaches the column.

Technical Specifications

• Absolute pore size rating gives consistent results across protocols
• Stable across a wide operating temperature range for demanding methods
• Filters aggressive organic solvents without swelling or breakdown
• Chemically inert against aggressive solvents, strong acids, and alkalis
• Low extractables keep the chromatographic background clean

Housing Specifications

• Inert polyolefin wall contributes minimal sample adsorption to the filtrate
• Plasticizer-free polyolefin construction keeps the fluid path clean
• Optimized internal geometry minimizes backpressure in service
• Stable across the full aqueous pH range in routine sample work

Clarifying organic mobile phases before injection protects your chromatography while standing up to the solvent. Reliable solvent prefiltration clears particulates from your organic samples so your downstream method starts with a clean sample. Send your application details to our technical service team and request a filtration product recommendation.

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

Bubble Point (psi)

7.25psi (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

Volume Throughput (ml)

120ml

Weight

1.46

Wettability

Hydrophobic

• Aggressive Solvent Clarification - Clarifies high volumes of THF, DMF, DMSO, chloroform, and acetonitrile for synthetic chemistry and purification
• HPLC Sample Preparation - Removes particulates from 50-120ml samples in organic mobile phases, protecting analytical columns from fouling
• Strong Acid Handling - Filters concentrated HCl, H2SO4, HNO3, and TFA where chemical resistance is required for method development batches
• Protein Precipitation Cleanup - Clarifies samples after TCA, methanol, or acetonitrile precipitation in proteomics and bioanalytical workflows
• Tissue Culture Solvents - Filters bulk volumes of ethanol, methanol, and organic fixatives for cell permeabilization and extraction protocols
• Pharmaceutical Testing - Prepares large-volume samples for dissolution testing in aggressive media and organic solvent systems