Nylon UniPrep Syringeless Filters, 0.45um, 50 pack
Whatman SKU: UN113UNYL

Nylon Syringeless Filters - UN113UNYL

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. Naturally hydrophilic nylon accepts water-based samples without surfactant preconditioning and delivers sharp particle cutoff at the rated pore size. Polypropylene construction maintains a low-dead-volume internal flow path and maintains housing integrity through the filtration run. Standardized this way, sample preparation becomes one of the most controlled and repeatable steps in the analytical workflow.

Technical Specifications

• Low extractable contribution to sensitive analytical preparations
• Alkaline-resistant across a broad range of aqueous buffers
• High tensile strength for stability under elevated differential pressures
• Absolute pore size rating provides consistent results across filtration protocols
• Broad compatibility with alcohols, aliphatic, and aromatic solvents

Housing Specifications

• Optimized internal geometry minimizes backpressure in service
• Low extractable contribution protects sensitive downstream analyses
• Medical-grade polypropylene with broad chemical compatibility
• Reliable housing-to-membrane seal prevents bypass at rated pressure

Consistent closures and low-extractable components keep your baselines clean across long autosampler queues. Consistent autosampler-ready components keep your chromatographic methods reproducible so injection-to-injection variability stays low. Ask the Tisch Scientific team about blanket-order pricing and documentation for your routine autosampler supplies.

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

Material

Nylon

Pore Size (µm)

0.45

Sterility

Nonsterile

Wettability

Hydrophilic

• High-Throughput Prep - Disposable single-unit format speeds batch sample preparation by eliminating syringe assembly and cleanup between samples.
• Heavy Particulate Samples - Glass microfiber prefilter traps large debris through its fibrous depth, preventing premature membrane blockage.
• Aqueous Biological Matrices - Nylon membrane filters aqueous and mixed-solvent samples without pre-wetting, maintaining flow for routine prep.
• Column Lifetime Extension - Consistent sub-micron particle removal before injection reduces column contamination and back pressure buildup.
• Tissue Culture Media Prep - A glass-fiber prefilter and downstream membrane remove cellular debris from culture media before injection.
• UHPLC Prep Workflow - Integrated plunger and membrane filter sub-micron particles in one step, meeting stringent UHPLC injection purity requirements.