Trupor PES Syringe Filter, 0.45µm, 25mm, Hydrophilic, Nonsterile, Low Back Pressure, 100/Pk
LabExact SKU: LE-IWT-ES20026

LabExact Polyethersulfone (PES) Syringe Filters, 0.45 µm, 25 mm, 100/Pk - LE-IWT-ES20026

Sample preparation for chromatography often ends with a syringe filter on the path to the vial. The PES membrane loads aqueous buffers with zero pre-wetting delay and tolerates aliphatic alcohols, glycols, and aqueous buffers. The polypropylene housing presses snugly against the membrane during the pass and delivers a chemically clean filtrate to the downstream step. Where small-volume samples must reach the instrument clean, low hold-up volume keeps sample loss minimal while the instrument stays protected from particulate damage.

Membrane Characteristics

• Non-hydrogen-bonding surface avoids the polar adsorption nylon's amide backbone causes
• Antibody and protein samples pass through PES with minimal adsorptive loss
• Mechanical strength keeps the matrix intact under vacuum or pressure
• Compatibility spans both nucleic acid and protein-based filtration
• Aromatic sulfone backbone underlies stability across the full pH range

Housing Characteristics

• Polypropylene density near 0.90 g/cm3 keeps housing weight low relative to denser engineering plastics
• Burst pressure rating provides a wide safety margin above the rated maximum operating pressure
• Minimal ionic background from the polypropylene housing supports ion chromatography and trace-metal ICP-MS sample preparation
• Minimal intrinsic autofluorescence from the polypropylene housing supports background-sensitive fluorescence-based assay work downstream

Juggling several filter types for one routine clarification eats up your bench time. General-purpose aqueous filtration supports the sample types you handle every day across your water-analysis and general analytical workflows. Request comparable filtration options that may offer cost savings for your order from the Tisch Scientific team.

Sterilization Guidance

Standard autoclave cycles at 121°C for 30 minutes prepare the device for sterile workflows.

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

Nonsterile

Weight

0.5

Wettability

Hydrophilic

• Organic Carbon Testing - Clarifies water samples ahead of DOC and UV254 analysis while keeping organic carbon adsorption to the membrane minimal.
• PFAS Water Testing - PES filters process aqueous samples for EPA Method 1633A PFAS testing without added fluorinated background.
• 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.
• Biological Assays - Protects sensitive enzymatic and antibody-based assays from particulate interference without adsorbing critical reagents.
• Nucleic Acid Recovery - Processes DNA and RNA extracts with minimal nucleic acid adsorption, preserving yield on the hydrophilic PES surface.