PTFE Syringe Filter, Hydrophobic, Nonsterile - 0.45µm, 4mm - 200/pk
LabExact SKU: LE-IWT-ES-10604

LabExact PTFE Syringe Filters, 0.45 µm, 4 mm, 200/Pk - LE-IWT-ES-10604

Many syringe filters ship with lot-specific quality documentation, giving analysts documented traceability beyond what an ad hoc bulk filtration setup typically provides. PTFE suits solvent and reagent filtration where other membranes fail while maintaining absolute retention consistency at every rated size and repels water while passing gases and solvents freely. The polypropylene housing preserves sample chemistry across the flow path and leaves no seam for sample to bypass the membrane. For routine sample preparation across many methods, each analytical run starts with a consistent, particle-free sample without added hardware or a cleaning step.

Membrane Characteristics

• Non-wetting pore surface blocks liquid water while passing water vapor freely
• UL 94 V-0 rating confirms the highest self-extinguishing classification
• High porosity minimizes hold-up volume for small sample volumes
• Fully fluorinated carbon backbone resists ultraviolet and ozone degradation
• Ionic and metallic extractable levels stay very low

Housing Characteristics

• Polypropylene housing tolerates dilute aqueous acids, bases, and alcohols used in routine sample prep
• Housing tolerates elevated-temperature aqueous and solvent sample filtration up to about 80°C without softening
• Standardized luer connection geometry provides secure engagement with standard syringe tips
• Housing rated for reliable filtration under syringe-applied backpressure at its maximum operating pressure

Particulates left in your organic solvents and reagents carry downstream into the step that depends on a clean feed. Solvent-stream filtration handles the solvents and reagents your methods rely on from initial prep through final use. Request a quality certificate, lot documentation, or a blanket-order quote for your filtration order at any time.

Sterilization Guidance

Customer autoclave compatibility at 121°C accommodates in-lab sterilization timing.

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

Ahlstrom Equivalent

760544

Diameter

4mm

Material

Polytetrafluoroethylene (PTFE)

Pack Count

200

Pall Equivalent

4472

Pore Size (µm)

0.45

Sartorius Equivalent

17820----------K

Sterility

Nonsterile

Weight

0.55

Wettability

Hydrophobic

Whatman Equivalent

6784-0404

• Chemical Synthesis - Resists aggressive organic solvents and corrosive acids for compatibility with harsh synthetic reaction mixtures.
• Air Monitoring - Ensures precise capture of airborne particulates for environmental analysis in demanding atmospheric monitoring conditions.
• Battery Electrolyte Prep - Clarifies lithium-ion battery electrolyte in carbonate solvents ahead of GC-MS purity and impurity analysis.
• Toxicology Screening - Clarifies protein-precipitated serum, plasma, and urine extracts ahead of LC-MS or GC-MS drug screening analysis.
• Mobile Phase Prep - Extends column life by consistently removing particulates from organic HPLC mobile phases before every injection.
• Extractables Testing - Clarifies packaging material organic solvent extracts ahead of LC-MS analysis, keeping background low for leachable detection.