Autovial 5 Syringeless Filter, no PreFilter, 0.45um, PTFE Filteration Medium, 50 pcs
Whatman SKU: AV115NPUORG

PTFE Syringeless Filters - AV115NPUORG

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 holds consistent absolute retention at the rated pore size while withstanding aggressive organics that degrade other media and suits solvent filtration where other membranes fail. The PP housing stays inert across common laboratory solvents and buffers while holding a reliable seal against the membrane edge and keeps the fluid path low in extractable contamination. Standardized this way, sample preparation becomes one of the most controlled and repeatable steps in the analytical workflow.

Technical Specifications

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

Housing Specifications

• Low extractable contribution protects sensitive downstream analyses
• Thermal-bonded construction keeps adhesives out of the fluid path
• Optimized internal geometry minimizes backpressure in service
• Medical-grade polypropylene with broad chemical compatibility

Sample clarification before injection is the cheapest insurance your chromatography system has. Pre-injection filtration protects the resolution your methods depend on by clearing particulates ahead of the column and frits. Ask the Tisch Scientific team about blanket-order pricing and documentation for your routine autosampler supplies.

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

Construction

Polypropylene (PP)

Material

Polytetrafluoroethylene (PTFE)

Pore Size (µm)

0.45

Sterility

Nonsterile

Wettability

Hydrophobic

• 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.
• 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.
• Aggressive Solvent Matrices - PTFE membrane withstands organic solvents, enabling reliable clarification of solvent-matched sample matrices.
• UHPLC Prep Workflow - Integrated plunger and membrane filter sub-micron particles in one step, meeting stringent UHPLC injection purity requirements.