PES Membrane Syringe Filter, Nonsterile - 0.45µm, 4mm, Hydrophilic, 200/Pk
LabExact SKU: LE-IWT-ES-10610

LabExact Polyethersulfone (PES) Syringe Filters, 0.45 µm, 4 mm, 200/Pk - LE-IWT-ES-10610

Because each syringe filter is dedicated to one sample, a failed or contaminated filtration stays isolated to its own analyst's run and leaves the next analyst's queue clear. PES handles strong bases and oils across a broad aqueous range while leaving proteins less surface area to contact and loads aqueous buffers with zero pre-wetting delay. Low-extractable polypropylene keeps sample purity intact through the filtration pass while pressing snugly against the membrane during the pass and sustains efficient flow on viscous samples. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Membrane Characteristics

• Ionic extractables from the membrane stay very low
• DNA and RNA pass through with negligible adsorptive loss
• PFAS extractables test non-detectable under EPA Method 537.1
• Inherent hydrophilicity allows instant aqueous wetting with no pre-wetting step
• Non-ionic surface avoids charge-driven protein binding of positively and negatively charged membrane types

Housing Characteristics

• Medical-grade polypropylene with broad chemical compatibility
• Minimal extractable release from the housing supports sensitive analytical work downstream
• Thermal-bonded construction keeps adhesives out of the fluid path
• Impact-tolerant polypropylene body withstands routine bench handling without damage

A particulate-laden aqueous sample makes the rest of your preparation unpredictable. General-purpose aqueous filtration supports the sample types you handle every day across your water-analysis and general analytical workflows. Request available pack sizes and lead times across this filtration line's membrane options from the Tisch Scientific team.

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.

Diameter

4mm

Material

Polyethersulfone (PES)

Pack Count

200

Pore Size (µm)

0.45

Sterility

Nonsterile

Weight

0.55

Wettability

Hydrophilic

• Organic Carbon Testing - Clarifies water samples ahead of DOC and UV254 analysis while keeping organic carbon adsorption to the membrane minimal.
• Nucleic Acid Recovery - Processes DNA and RNA extracts with minimal nucleic acid adsorption, preserving yield on the hydrophilic PES surface.
• Pesticide Residue Testing - PES membranes improve polar pesticide recovery in food-safety LC-MS/MS testing versus hydrogen-bonding nylon.
• Sample Recovery - Minimizes sample loss in low-protein-binding applications, delivering high yield for precious or rare biological specimens.
• Urine Drug Screening - Clarifies protein-poor urine samples for dilute-and-shoot LC-MS/MS toxicology testing without adsorbing target drug analytes.
• Serum Filtration - Clarifies serum and plasma samples quickly while retaining critical proteins needed for accurate downstream analytical testing.