PVDF Mini-UniPrep Syringeless Filters, 0.45um, Translucent Housing, Standard Cap, 1000 pack
Whatman SKU: UN503NPUAQU

PVDF Syringeless Filters - UN503NPUAQU

Syringeless filters consolidate the syringe-and-filter routine into one disposable assembly, reducing setup time and the multi-step handling that conventional filtration requires for each sample. The PVDF membrane clarifies samples at the rated pore size and resists HPLC mobile phases, alcohols, and mild hydrocarbons. Polypropylene construction maintains housing integrity through the filtration run and sustains efficient flow on viscous samples. Where high-throughput HPLC and UHPLC demand consistent injections, that uniformity keeps method performance predictable.

Technical Specifications

• Ultra-low protein binding preserves dilute analytes for maximum recovery
• Low extractables preserve a clean chromatographic baseline
• Thin membrane structure sustains high flow for fast sample throughput
• Resists HPLC mobile phases, alcohols, and mild hydrocarbons
• Absolute pore size rating gives consistent results across protocols

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
• Low extractable contribution protects sensitive downstream analyses

Upstream clarification pays for itself by keeping your columns clear and your analytical day on schedule. Upstream sample clarification keeps your separations clean and reproducible from sample preparation through final injection. 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)

0.45

Sterility

Nonsterile

Wettability

Hydrophilic

• HPLC Sample Prep - Plunger-driven filtration removes particulates from analytical samples, protecting columns from clogging and back pressure.
• High-Throughput Prep - Disposable single-unit format speeds batch sample preparation by eliminating syringe assembly and cleanup between samples.
• Bioanalytical Sample Cleanup - Low-binding membranes clarify plasma and serum extracts, retaining drug analytes for accurate quantitation.
• Solubility Assay Filtration - Positive-pressure filtration cleanly clarifies small sample volumes, supporting accurate solubility determination.
• Pharmaceutical QC Testing - Content uniformity and dissolution samples are clarified in one step, reducing handling before chromatographic injection.
• Direct Sample Filtration - Built-in membrane clarifies the sample in one manual step, cutting transfer steps before chromatographic injection.