PTFE Mini-UniPrep Syringeless Filters, 0.45um, Translucent Housing, Slit Septum Cap, 1000/Pk SKU: US503NPUORG

PTFE Syringeless Filters - US503NPUORG

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. PTFE delivers absolute particle cutoff at the rated pore size while suiting solvent filtration where other membranes fail and resists attack from the harshest process chemistries. The polypropylene housing routes flow to minimize backpressure in service while holding a reliable seal against the membrane edge and keeps the fluid path low in extractable contamination. Cleaner, more uniform injections follow, giving the method the reproducibility that quantitative analysis depends on.

Technical Specifications

• Absolute pore size rating gives consistent results across protocols
• Chemically inert against aggressive solvents, strong acids, and alkalis
• Low extractables keep the chromatographic background clean
• Filters aggressive organic solvents without swelling or breakdown
• Stable across a wide operating temperature range for demanding methods

Housing Specifications

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

Holding a leak-free seal through every needle puncture keeps your injections clean from the first to the last. Consistent autosampler-ready components keep your chromatographic methods reproducible across routine and regulated analytical 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

Polytetrafluoroethylene (PTFE)

Pore Size (µm)

0.45

Sterility

Nonsterile

Wettability

Hydrophobic

• Direct Sample Filtration - Built-in membrane clarifies the sample in one manual step, cutting transfer steps before chromatographic injection.
• HPLC Sample Prep - Plunger-driven filtration removes particulates from analytical samples, protecting columns from clogging and back pressure.
• Pharmaceutical QC Testing - Content uniformity and dissolution samples are clarified in one step, reducing handling before chromatographic injection.
• Column Lifetime Extension - Consistent sub-micron particle removal before injection reduces column contamination and back pressure buildup.
• Aggressive Solvent Matrices - PTFE membrane withstands organic solvents, enabling reliable clarification of solvent-matched sample matrices.
• Light-Sensitive Samples - Amber housing options shield photosensitive analytes from light during filtration for chromatographic preparation.