Autovial 12 Syringeless Filter, Glass PreFilter, 0.45um, PTFE Filteration Medium, 1000 pcs
Whatman SKU: AV525UORG

PTFE Syringeless Filters - AV525UORG

For analysts clearing high sample volumes, syringeless filters combine the membrane and prefilter into one disposable format, shortening setup and keeping the prep workflow uninterrupted. PTFE filters aggressive organic solvents without swelling or breakdown while resisting attack from the harshest process chemistries and delivers absolute particle cutoff at the rated pore size. The PP housing keeps the fluid path low in extractable contamination while preventing sample bypass under rated operating pressure and routes flow to minimize backpressure in service. Cleaner, more uniform injections follow, giving the method the reproducibility that quantitative analysis depends on.

Technical Specifications

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

Housing Specifications

• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Thermal-bonded construction keeps adhesives out of the fluid path
• Resists aqueous acids, bases, and alcohols in routine sample prep
• Optimized internal geometry minimizes backpressure in service

Upstream clarification pays for itself by keeping your columns clear and your analytical day on schedule. Pre-injection filtration protects the resolution your methods depend on so your retention times and peak shapes stay consistent. Request a quality certificate, lot documentation, or a blanket-order quote from the Tisch Scientific support team.

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

Construction

Polypropylene (PP)

Material

Polytetrafluoroethylene (PTFE)

Pore Size (µm)

0.45

Sterility

Nonsterile

Wettability

Hydrophobic

• Heavy Particulate Samples - Glass microfiber prefilter traps large debris through its fibrous depth, preventing premature membrane blockage.
• Column Lifetime Extension - Consistent sub-micron particle removal before injection reduces column contamination and back pressure buildup.
• Aggressive Solvent Matrices - PTFE membrane withstands organic solvents, enabling reliable clarification of solvent-matched sample matrices.
• Direct Sample Filtration - Built-in membrane clarifies the sample in one manual step, cutting transfer steps before chromatographic injection.
• Solubility Assay Filtration - Positive-pressure filtration cleanly clarifies small sample volumes, supporting accurate solubility determination.
• HPLC Sample Prep - Plunger-driven filtration removes particulates from analytical samples, protecting columns from clogging and back pressure.