Sterile PES Syringe Filter w/ Glass Fiber Prefilter, 0.45µm, 25mm, Luer-Lok, 100/Pk
LabExact SKU: LE-IWT-ES10214

LabExact Polyethersulfone (PES) Syringe Filters, 0.45 µm, 25 mm, 100/Pk - LE-IWT-ES10214

A syringe filter dispenses filtrate directly into an autosampler vial, without the intermediate collection vessel a bulk vacuum filtration setup typically needs. The PES membrane clarifies particulates at the rated pore size and admits aqueous reagents on contact, skipping any surfactant rinse. Polypropylene housing is factory-sterilized and packaged to preserve that state until use while sustaining efficient flow on viscous samples and resists degradation from routine sample matrices. When chromatographic methods demand particle-free injections, the column stays clean from run to run, protecting method performance and column life.

Membrane Characteristics

• Non-ionic surface avoids charge-driven protein binding of positively and negatively charged membrane types
• Inherent hydrophilicity allows instant aqueous wetting with no pre-wetting step
• High flow rate pairs with a low extractable background
• Pore structure integrity holds through autoclave cycles up to 126°C
• Non-hydrogen-bonding surface avoids the polar adsorption nylon's amide backbone causes

Housing Characteristics

• Standardized luer connection geometry provides secure engagement with standard syringe tips
• Rigid polypropylene body maintains its geometry through routine filtration pressure
• Polypropylene housing tolerates dilute aqueous acids, bases, and alcohols used in routine sample prep
• Each housing is factory-sterilized and sealed individually to maintain sterility through the supply chain

Juggling several filter types for one routine clarification eats up your bench time. Consistent aqueous clarification clears particulates without slowing your bench routine the same way every time you run it. Start a live chat with the Tisch Scientific team about packaging, unit count, and ship-date for your filtration order.

Sterilization Guidance

Factory sterilization supports immediate use in workflows where sterility assurance matters.

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

Diameter

25mm

Material

Polyethersulfone (PES)

Pack Count

100

Pore Size (µm)

0.45

Sterility

Sterile

Weight

0.9

Wettability

Hydrophilic

Whatman Equivalent

6896-2504

• Life Science Prep - Speeds processing of viscous biological solutions, improving laboratory workflow efficiency during busy sample prep days.
• Urine Drug Screening - Clarifies protein-poor urine samples for dilute-and-shoot LC-MS/MS toxicology testing without adsorbing target drug analytes.
• Pesticide Residue Testing - PES membranes improve polar pesticide recovery in food-safety LC-MS/MS testing versus hydrogen-bonding nylon.
• Nucleic Acid Recovery - Processes DNA and RNA extracts with minimal nucleic acid adsorption, preserving yield on the hydrophilic PES surface.
• Serum Filtration - Clarifies serum and plasma samples quickly while retaining critical proteins needed for accurate downstream analytical testing.
• Organic Carbon Testing - Clarifies water samples ahead of DOC and UV254 analysis while keeping organic carbon adsorption to the membrane minimal.