Nylon Mini-UniPrep Syringeless Filters, 0.2um, Translucent Housing, Slit Septum Cap, 1000/Pk
Whatman SKU: US503NPENYL

Nylon Syringeless Filters - US503NPENYL

By removing the separate filter and syringe from sample preparation, syringeless filters reduce setup time and limit the particulate carryover that can raise autosampler backpressure and shorten column life. The nylon matrix resists particle shedding through extended filtration cycles and holds sterile-rated retention across the operating envelope. Polypropylene construction holds extractable contribution low for sensitive analyses and holds a reliable seal against the membrane edge. For the analyst, that consistency means chromatographic results with less run-to-run variability traced back to sample preparation.

Technical Specifications

• Broad compatibility with alcohols, aliphatic, and aromatic solvents
• Low extractable contribution to sensitive analytical preparations
• Stable across the pH 3 to 12 operating range
• Naturally hydrophilic surface wets without pre-wetting in aqueous applications
• Absolute pore size rating provides consistent results across filtration protocols

Housing Specifications

• Low extractable contribution protects sensitive downstream analyses
• Thermal-bonded construction keeps adhesives out of the fluid path
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Medical-grade polypropylene with broad chemical compatibility

Upstream clarification pays for itself by keeping your columns clear and your analytical day on schedule. Pre-injection filtration protects the resolution your methods depend on by clearing particulates ahead of the column and frits. Connect with our customer support technicians to standardize vials, caps, and septa across your chromatography workflows.

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

Material

Nylon

Pore Size (µm)

0.2

Sterility

Nonsterile

Wettability

Hydrophilic

• Solubility Assay Filtration - Positive-pressure filtration cleanly clarifies small sample volumes, supporting accurate solubility determination.
• Direct Sample Filtration - Built-in membrane clarifies the sample in one manual step, cutting transfer steps before chromatographic injection.
• 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.
• Column Lifetime Extension - Consistent sub-micron particle removal before injection reduces column contamination and back pressure buildup.