Autovial 12 Syringeless Filter, Glass PreFilter, 0.2um, Nylon Filteration Medium, 50pcs
Whatman SKU: AV125ENAO

Nylon Syringeless Filters - AV125ENAO

Across UniPrep, Mini-UniPrep, and Autovial formats, syringeless filters integrate filtration into one disposable, so analysts clarify a sample without assembling and changing filters between runs. The nylon membrane draws aqueous buffers through without pre-wetting while adding a layered prefilter for particulate-laden samples and holds dimensional stability under rated backpressure. The polypropylene housing contributes minimal extractables to the filtrate while holding a reliable seal against the membrane edge and resists aqueous acids, bases, and alcohols. Where high-throughput HPLC and UHPLC demand consistent injections, that uniformity keeps method performance predictable.

Technical Specifications

• Layered prefiltration sustains flow through turbid, particulate-laden samples
• Broad compatibility with alcohols, aliphatic, and aromatic solvents
• Alkaline-resistant across a broad range of aqueous buffers
• High tensile strength for stability under elevated differential pressures
• Naturally hydrophilic surface wets without pre-wetting in aqueous applications

Housing Specifications

• Resists aqueous acids, bases, and alcohols in routine sample prep
• Medical-grade polypropylene with broad chemical compatibility
• Optimized internal geometry minimizes backpressure in service
• Low extractable contribution protects sensitive downstream analyses

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. Connect with our customer support technicians to standardize vials, caps, and septa across your chromatography workflows.

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

Construction

Polypropylene (PP)

Material

Nylon

Pore Size (µm)

0.2

Sterility

Nonsterile

Wettability

Hydrophilic

• Column Lifetime Extension - Consistent sub-micron particle removal before injection reduces column contamination and back pressure buildup.
• UHPLC Prep Workflow - Integrated plunger and membrane filter sub-micron particles in one step, meeting stringent UHPLC injection purity requirements.
• Light-Sensitive Samples - Amber housing options shield photosensitive analytes from light during filtration for chromatographic preparation.
• Pharmaceutical QC Testing - Content uniformity and dissolution samples are clarified in one step, reducing handling before chromatographic injection.
• Heavy Particulate Samples - Glass microfiber prefilter traps large debris through its fibrous depth, preventing premature membrane blockage.
• Direct Sample Filtration - Built-in membrane clarifies the sample in one manual step, cutting transfer steps before chromatographic injection.