Trupor® PES Syringe Filter, 0.22µm, 25mm, Hydrophilic, Binderless Composite, 100/Pk
LabExact SKU: LE-IWT-ES20025

LabExact Polyethersulfone (PES) Syringe Filters, 0.22 µm, 25 mm, 100/Pk - LE-IWT-ES20025

At the sub-micron pore rating, a syringe filter delivers sterilizing-grade retention at the point of use. PES provides sterile-grade retention at the rated sub-micron pore size while staying stable across the pH 1 to 14 range and loads aqueous buffers with zero pre-wetting delay. Polypropylene construction maintains a low-dead-volume internal flow path and preserves sample chemistry across the flow path. For workflows requiring validated sterile-grade performance, point-of-use retention meets it without a separate sterilization step.

Membrane Characteristics

• Chemical breadth spans alcohols, glycols, and aqueous buffers
• Compatibility spans both nucleic acid and protein-based filtration
• Mechanical strength keeps the matrix intact under vacuum or pressure
• Antibody and protein samples pass through PES with minimal adsorptive loss
• Sterilizing-grade PES membrane lots are challenge-tested against Brevundimonas diminuta to qualify 0.2 micron retention

Housing Characteristics

• Rigid polypropylene body maintains its geometry through routine filtration pressure
• Minimal intrinsic autofluorescence from the polypropylene housing supports background-sensitive fluorescence-based assay work downstream
• Minimal extractable release from the housing supports sensitive analytical work downstream
• Polypropylene housing withstands rated backpressure from dense sample matrices without deformation

Particulates in your buffers and mobile phases shorten column life and unsettle your baselines. Reliable particulate removal protects your instruments and your data across reagent, buffer, and mobile-phase preparation. Request a quote on bulk pricing for larger filtration orders from the Tisch Scientific team.

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

25mm

Material

Polyethersulfone (PES)

Pack Count

100

Pore Size (µm)

0.22

Sterility

Nonsterile

Weight

0.5

Wettability

Hydrophilic

• Cell Culture - Reduces the risk of mycoplasma contamination in growth media, supporting healthier cell lines and more reliable experimental outcomes.
• Media Preparation - Facilitates rapid sterilization of tissue culture additives, lowering contamination risk during sensitive laboratory work.
• Organic Carbon Testing - Clarifies water samples ahead of DOC and UV254 analysis while keeping organic carbon adsorption to the membrane minimal.
• Sample Recovery - Minimizes sample loss in low-protein-binding applications, delivering high yield for precious or rare biological specimens.
• 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.