Regen. Cellulose Mini-UniPrep Syringeless Filters, 0.2_m, Trans. Hsg, Std Cap, 100/Pk
Whatman SKU: UN203NPERC

Regenerated Cellulose (RC) Syringeless Filters - UN203NPERC

A single syringeless device replaces the separate syringe, filter, and transfer vial, cutting both setup time and the handling steps where analyte is lost or contaminated. RC accepts water-based and solvent samples without surfactant preconditioning while limiting sample adsorption across the run and handles acetonitrile, methanol, acetone, and DMSO. The polypropylene housing contributes minimal extractables to the filtrate while staying inert across common laboratory solvents and maintains a low-dead-volume internal flow path. Where high-throughput HPLC and UHPLC demand consistent injections, that uniformity keeps method performance predictable.

Technical Specifications

• Stable against DMSO and compatible with common aqueous and organic HPLC solvents
• Naturally hydrophilic surface wets without pre-wetting in aqueous and solvent samples
• Stable across the aqueous pH 3 to 12 range
• Low non-specific binding preserves dilute analytes for maximum recovery
• Fine sub-micron particulate removal protects columns and instruments

Housing Specifications

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

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. Contact Tisch Scientific for help matching vials, caps, and septa to your autosampler platform.

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

Material

Cellulose

Pore Size (µm)

0.2

Sterility

Nonsterile

Wettability

Hydrophilic

• Pharmaceutical QC Testing - Content uniformity and dissolution samples are clarified in one step, reducing handling before chromatographic injection.
• 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.
• Protein Precipitation Cleanup - Low protein binding retains analyte integrity when filtering precipitated sample supernatants.
• Column Lifetime Extension - Consistent sub-micron particle removal before injection reduces column contamination and back pressure buildup.
• High-Throughput Prep - Disposable single-unit format speeds batch sample preparation by eliminating syringe assembly and cleanup between samples.