Regen. Cellulose Mini-UniPrep Syringeless Filters, 0.2um, Translucent Housing, 1000pk
Whatman SKU: UN503NPERC

Regenerated Cellulose (RC) Syringeless Filters - UN503NPERC

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 RC membrane stays stable across the aqueous pH 3 to 12 range and accepts water-based and solvent samples without preconditioning. The PP housing stays inert across common laboratory solvents and buffers while keeping the fluid path low in extractable contamination and sustains efficient flow on viscous samples. For the analyst, that consistency means chromatographic results with less run-to-run variability traced back to sample preparation.

Technical Specifications

• Absolute pore size rating gives consistent results across protocols
• Low non-specific binding preserves dilute analytes for maximum recovery
• Fine sub-micron particulate removal protects columns and instruments
• Stable across the aqueous pH 3 to 12 range
• Naturally hydrophilic surface wets without pre-wetting in aqueous and solvent samples

Housing Specifications

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

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.

Material

Cellulose

Pore Size (µm)

0.2

Sterility

Nonsterile

Wettability

Hydrophilic

• Solubility Assay Filtration - Positive-pressure filtration cleanly clarifies small sample volumes, supporting accurate solubility determination.
• Light-Sensitive Samples - Amber housing options shield photosensitive analytes from light during filtration for chromatographic preparation.
• 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.
• HPLC Sample Prep - Plunger-driven filtration removes particulates from analytical samples, protecting columns from clogging and back pressure.
• Bioanalytical Sample Cleanup - Low-binding membranes clarify plasma and serum extracts, retaining drug analytes for accurate quantitation.