PVDF Mini-UniPrep Syringeless Filters, 0.45um, Translucent Housing, Slit Septum Cap, 100/Pk
Whatman SKU: US203NPUAQU

PVDF Syringeless Filters - US203NPUAQU

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. Ultra-low-binding PVDF preserves dilute proteins and analytes in the filtrate and resists HPLC mobile phases, alcohols, and mild hydrocarbons. The polypropylene housing routes flow to minimize backpressure in service and maintains housing integrity through the filtration run. For the analyst, that consistency means chromatographic results with less run-to-run variability traced back to sample preparation.

Technical Specifications

• Low extractables preserve a clean chromatographic baseline
• 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
• Thin membrane structure sustains high flow for fast sample throughput

Housing Specifications

• Thermal-bonded construction keeps adhesives out of the fluid path
• Medical-grade polypropylene with broad chemical compatibility
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Optimized internal geometry minimizes backpressure in service

Consistent closures and low-extractable components keep your baselines clean across long autosampler queues. Consistent autosampler-ready components keep your chromatographic methods reproducible with reliable sealing and dimensional consistency. 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

Polyvinylidene Fluoride (PVDF)

Pore Size (µm)

0.45

Sterility

Nonsterile

Wettability

Hydrophilic

• Bioanalytical Sample Cleanup - Low-binding membranes clarify plasma and serum extracts, retaining drug analytes for accurate quantitation.
• Pharmaceutical QC Testing - Content uniformity and dissolution samples are clarified in one step, reducing handling before chromatographic injection.
• Light-Sensitive Samples - Amber housing options shield photosensitive analytes from light during filtration for chromatographic preparation.
• UHPLC Prep Workflow - Integrated plunger and membrane filter sub-micron particles in one step, meeting stringent UHPLC injection purity requirements.
• Direct Sample Filtration - Built-in membrane clarifies the sample in one manual step, cutting transfer steps before chromatographic injection.
• High-Throughput Prep - Disposable single-unit format speeds batch sample preparation by eliminating syringe assembly and cleanup between samples.