PVDF Mini-UniPrep Syringeless Filters, 0.2um, Translucent Housing, Slit Septum Cap, 1000/Pk
Whatman SKU: US503NPEAQU

PVDF Syringeless Filters - US503NPEAQU

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. Hydrophilic PVDF suits HPLC sample preparation and aqueous clarification while resisting HPLC mobile phases, alcohols, and mild hydrocarbons and keeps analyte adsorption low for clean recovery. The PP housing sustains efficient flow on viscous samples and holds a reliable seal against the membrane edge. Where high-throughput HPLC and UHPLC demand consistent injections, that uniformity keeps method performance predictable.

Technical Specifications

• Absolute pore size rating gives consistent results across protocols
• Resists HPLC mobile phases, alcohols, and mild hydrocarbons
• Ultra-low protein binding preserves dilute analytes for maximum recovery
• Low extractables preserve a clean chromatographic baseline
• Hydrophilic surface wets aqueous and HPLC samples without pre-wetting

Housing Specifications

• Optimized internal geometry minimizes backpressure in service
• Thermal-bonded construction keeps adhesives out of the fluid path
• Medical-grade polypropylene with broad chemical compatibility
• Resists aqueous acids, bases, and alcohols in routine sample prep

Sample clarification before injection is the cheapest insurance your chromatography system has. Pre-injection filtration protects the resolution your methods depend on across reversed-phase and normal-phase workflows. 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

Polyvinylidene Fluoride (PVDF)

Pore Size (µm)

0.2

Sterility

Nonsterile

Wettability

Hydrophilic

• HPLC Sample Prep - Plunger-driven filtration removes particulates from analytical samples, protecting columns from clogging and back pressure.
• 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.
• Pharmaceutical QC Testing - Content uniformity and dissolution samples are clarified in one step, reducing handling before chromatographic injection.
• Bioanalytical Sample Cleanup - Low-binding membranes clarify plasma and serum extracts, retaining drug analytes for accurate quantitation.
• UHPLC Prep Workflow - Integrated plunger and membrane filter sub-micron particles in one step, meeting stringent UHPLC injection purity requirements.