Autovial 12 Syringeless Filter, Glass PreFilter, 0.2um, PTFE, 50 pcs
Whatman SKU: AV125EORG

PTFE Syringeless Filters - AV125EORG

By removing the separate filter and syringe from sample preparation, syringeless filters reduce setup time and limit the particulate carryover that can raise autosampler backpressure and shorten column life. PTFE suits solvent and reagent filtration where other membranes fail and withstands aggressive organics that degrade other media. The polypropylene housing routes flow to minimize backpressure in service while holding extractables low for sensitive analyses and holds a reliable seal against the membrane edge. Where high-throughput HPLC and UHPLC demand consistent injections, that uniformity keeps method performance predictable.

Technical Specifications

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

Housing Specifications

• Thermal-bonded construction keeps adhesives out of the fluid path
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Resists aqueous acids, bases, and alcohols in routine sample prep
• Medical-grade polypropylene with broad chemical compatibility

Protecting sample integrity from preparation through injection keeps your chromatographic results trustworthy. Dependable vial and closure performance protects your samples through every injection across HPLC, UPLC, and GC autosampler platforms. Ask our friendly customer service team to confirm the cap size, septa material, and thread your method requires.

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

Construction

Polypropylene (PP)

Material

Polytetrafluoroethylene (PTFE)

Pore Size (µm)

0.2

Sterility

Nonsterile

Wettability

Hydrophobic

• Column Lifetime Extension - Consistent sub-micron particle removal before injection reduces column contamination and back pressure buildup.
• Light-Sensitive Samples - Amber housing options shield photosensitive analytes from light during filtration for chromatographic preparation.
• UHPLC Prep Workflow - Integrated plunger and membrane filter sub-micron particles in one step, meeting stringent UHPLC injection purity requirements.
• Heavy Particulate Samples - Glass microfiber prefilter traps large debris through its fibrous depth, preventing premature membrane blockage.
• High-Throughput Prep - Disposable single-unit format speeds batch sample preparation by eliminating syringe assembly and cleanup between samples.
• Solubility Assay Filtration - Positive-pressure filtration cleanly clarifies small sample volumes, supporting accurate solubility determination.