Pura Disc 25mm PES Syringe Filters, 1.0um, 200 Pk
Whatman SKU: 6781-2510

Whatman Puradisc Polyethersulfone (PES) Syringe Filters, 1 µm, 25 mm, 200/Pk - 6781-2510

Whatman's established manufacturing platform delivers the consistency and lot-level documentation that analytical laboratories require. Sample preparation for chromatography often ends with a syringe filter on the path to the vial. PES handles strong bases and oils across a broad aqueous range while accepting water-based reagents without preconditioning and holds consistent absolute retention at the rated pore size. Polypropylene construction maintains a low-dead-volume internal flow path and holds extractables low for sensitive analyses. Where small-volume samples must reach the instrument clean, syringe filtration clears particulates in a single pass.

Technical Specifications

• Broad compatibility with aqueous buffers, aliphatic alcohols, glycols, and strong bases
• High flow rate with low extractable background for clean preparations
• Naturally hydrophilic surface wets without pre-wetting in aqueous applications
• Low protein binding preserves dilute analytes for maximum recovery
• Stable across the full pH 1 to 14 operating range

Housing Specifications

• Low extractable contribution protects sensitive downstream analyses
• Optimized internal geometry minimizes backpressure in service
• Medical-grade polypropylene with broad chemical compatibility
• Reliable housing-to-membrane seal prevents bypass at rated pressure

Clarify your routine aqueous samples in a single pass and cut down on juggling multiple filter types at the bench. General-purpose aqueous filtration supports the sample types you handle every day from reagent and buffer preparation through routine sample clarification. Call on the Tisch Scientific team to standardize filtration products across your methods with volume pricing and documentation.

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

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.2cm²

Holdup Volume

<100µl

Material

Polyethersulfone (PES)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

200

Pore Size (µm)

1

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Biological Sample Prep - The low protein-binding nature of PES ensures maximum recovery of critical enzymes and proteins
• Ion Chromatography - The extremely low extractable profile of PES provides the clean baselines needed for sensitive IC analysis
• Life Science Applications - Ideal for filtering serum and plasma, where minimizing nonspecific binding is crucial for assay accuracy
• Culture Media Filtration - PES offers the fastest flow rates for viscous culture media while maintaining absolute sterility
• Particulate Removal - Designed for removing high particulate loads, this filter aids in preventing premature clogging across diverse sample types
• General Laboratory Filtration - Increases workflow efficiency by preventing premature clogging without sacrificing flow rates