PTFE Hydrophobic Syringe Filter, 0.45µm, 25mm, Nonsterile, Luer Lock, 100/Pk
LabExact SKU: LE-IWT-ES10020

LabExact PTFE Syringe Filters, 0.45 µm, 25 mm, 100/Pk - LE-IWT-ES10020

Many syringe filters ship with lot-specific quality documentation, giving analysts documented traceability beyond what an ad hoc bulk filtration setup typically provides. The PTFE membrane withstands aggressive organics that degrade other media and excludes particles larger than the declared micron limit. The PP housing sustains efficient flow on viscous samples and stands firm against aqueous acids, bases, and alcohols during regular handling. For routine sample preparation across many methods, each analytical run starts with a consistent, particle-free sample without added hardware or a cleaning step.

Membrane Characteristics

• Insolubility in all known organic solvents avoids swelling and pore distortion
• High membrane porosity, 70 to 80 percent void volume, delivers high flow at low pressure
• Gas-venting and liquid-blocking function survives repeated autoclave sterilization cycles
• Water contact angle near 120 degrees marks strong hydrophobicity
• Solvent tolerance includes full-strength tetrahydrofuran and chlorinated solvents such as dichloromethane

Housing Characteristics

• Stable across the full aqueous pH range in routine sample work
• Inert polyolefin wall contributes minimal sample adsorption to the filtrate
• Housing rated for reliable filtration under syringe-applied backpressure at its maximum operating pressure
• Low moisture absorption keeps the housing dimensionally stable through humid storage and shipping

Particulates left in your organic solvents and reagents carry downstream into the step that depends on a clean feed. Reliable solvent prefiltration keeps a stray particulate from carrying into your downstream work from reaction mixtures and crude extracts through further processing. Standardize your filtration purchases across every method with volume pricing and documentation from the Tisch Scientific team.

Sterilization Guidance

Customer autoclave compatibility at 121°C accommodates in-lab sterilization timing.

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

Diameter

25mm

Material

Polytetrafluoroethylene (PTFE)

MFS/Advantec Equivalent

25JP050AN

Millipore Equivalent

SLFH025NS

Pack Count

100

Pall Equivalent

4219

Pore Size (µm)

0.45

Sartorius Equivalent

17576----------S

Sterility

Nonsterile

Weight

0.168

Wettability

Hydrophobic

Whatman Equivalent

6784-2504

• Mobile Phase Prep - Extends column life by consistently removing particulates from organic HPLC mobile phases before every injection.
• Extractables Testing - Clarifies packaging material organic solvent extracts ahead of LC-MS analysis, keeping background low for leachable detection.
• Polymer GPC Prep - Clarifies polymer solutions in THF ahead of gel permeation chromatography, protecting columns from particulates.
• Cryogenic Fluids - Delivers consistent performance across extreme temperature ranges, filtering cryogenic liquids with dependable, reliable results.
• Aggressive Solvents - Clarifies chlorinated hydrocarbons and aromatics without membrane degradation, delivering pure filtrate quality consistently.
• Trace Metals Analysis - PTFE's low metal-extractable profile clarifies acid-digested samples for clean, low-background ICP-MS and ICP-OES results.