PTFE Syringe Filter, Hydrophilic, 0.45µm, 4mm, Nonsterile, Luer-Lock, 200/Pk
LabExact SKU: LE-IWT-ES-10606

LabExact PTFE Syringe Filters, 0.45 µm, 4 mm, 200/Pk - LE-IWT-ES-10606

Sample preparation for chromatography often ends with a syringe filter on the path to the vial. PTFE holds consistent absolute retention at the rated pore size and accepts aqueous samples without alcohol pre-wetting. The polypropylene housing presses snugly against the membrane during the pass while staying inert across common laboratory solvents and sustains efficient flow on viscous samples. Where analytical results depend on clean samples, the preparation step stays consistent from sample to sample through a pre-tested syringe filter.

Membrane Characteristics

• Inert composition offers no nutrient source for microbial growth
• Absolute pore rating delivers reproducible retention across every protocol
• High porosity minimizes hold-up volume for small sample volumes
• Low non-specific protein binding preserves recovery of biomolecules and therapeutic proteins during filtration
• Strong oxidizing agents like nascent chlorine and concentrated sodium hydroxide cause no attack

Housing Characteristics

• Plasticizer-free polyolefin construction keeps the fluid path clean
• Impact-tolerant polypropylene body withstands routine bench handling without damage
• Minimal extractable release from the housing supports sensitive analytical work downstream
• Medical-grade polypropylene with broad chemical compatibility

Juggling several filter types for one routine clarification eats up your bench time. Consistent aqueous clarification clears particulates without slowing your bench routine across the buffers and reagents your day-to-day prep depends on. Request details on payment terms or standing-order arrangements for your routine filtration purchases.

Sterilization Guidance

The housing supports customer autoclave sterilization at 121°C for 30 minutes.

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

Diameter

4mm

Material

Polytetrafluoroethylene (PTFE)

Pack Count

200

Pore Size (µm)

0.45

Sterility

Nonsterile

Weight

0.55

Wettability

Hydrophilic

• Aggressive Solvents - Clarifies chlorinated hydrocarbons and aromatics without membrane degradation, delivering pure filtrate quality consistently.
• Spirits Congener Analysis - Clarifies distilled spirits samples ahead of GC analysis, protecting columns from residue during congener profiling.
• 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.
• Agrochemical Formulation QC - Clarifies technical pesticide concentrates in organic solvent ahead of HPLC potency and impurity analysis.
• Photoresist Filtration - Clarifies photoresist solutions in organic casting solvent ahead of spin-coating, reducing particulate defect risk.