Pura Disc 13mm PES Syringe Filters, 0.45um, 500 Pk
Whatman SKU: 6781-1304

Whatman Puradisc Polyethersulfone (PES) Syringe Filters, 0.45 µm, 13 mm, 500/Pk - 6781-1304

Whatman applies the same process controls across its filtration portfolio, verifying rated performance at the production lot level. At the point of sample preparation, a syringe filter removes particulates before the sample reaches the instrument. PES handles strong bases and oils across a broad aqueous range while preserving dilute proteins and analytes in the filtrate and draws aqueous samples through without pre-wetting. The polypropylene housing holds a reliable seal against the membrane edge and resists aqueous acids, bases, and alcohols. Where analytical results depend on clean samples, syringe filtration removes particulates at the moment of preparation.

Technical Specifications

• Naturally hydrophilic surface wets without pre-wetting in aqueous applications
• Absolute pore size rating gives consistent results across protocols
• High flow rate with low extractable background for clean preparations
• Broad compatibility with aqueous buffers, aliphatic alcohols, glycols, and strong bases
• Low protein binding preserves dilute analytes for maximum recovery

Housing Specifications

• Low extractable contribution protects sensitive downstream analyses
• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Optimized internal geometry minimizes backpressure in service
• Resists aqueous acids, bases, and alcohols in routine sample prep

Filtering particulates upstream protects the column investment your methods depend on. Upstream buffer clarification keeps avoidable particulates out of your flow path across routine and validated analytical methods. Request a quality certificate, lot documentation, or a blanket-order quote from the Tisch Scientific support team.

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

Bubble Point (psi)

2.3 bar (33 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

13mm

Filtration Area

1.3cm²

Holdup Volume

<25µl

Material

Polyethersulfone (PES)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

500

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophilic

• Ion Chromatography - The extremely low extractable profile of PES provides the clean baselines needed for sensitive IC analysis
• Culture Media Filtration - PES offers the fastest flow rates for viscous culture media while maintaining absolute sterility
• Life Science Applications - Ideal for filtering serum and plasma, where minimizing nonspecific binding is crucial for assay accuracy
• Biological Sample Prep - The low protein-binding nature of PES ensures maximum recovery of critical enzymes and proteins
• Biological Fluid Analysis - Protects sensitive downstream instruments from removing particulates that can cause system failure
• Sample Clarification - Protecting analytical instruments via rapid removal of particulates to maintain high throughput in busy laboratories