Whatman
GD/XP Syringe Filter, PES, 0.45um (150 pcs) SKU: 6994-2504

Polyethersulfone (PES) Syringe Filters, 0.45µm, 25mm - 6994-2504

In high-throughput analytical laboratories, the Polyethersulfone (PES) Whatman GD/XP Syringe Filter, PES filtrationmedium, 0.45µm, 150/pk series establishes a standard for effective particulate removal and sample clarification. To ensure analytical precision, the unit is constructed with a high-grade Polyethersulfone (PES) membrane providing a consistent 0.45 cutoff that passes only your target analyte. Designed to facilitate rapid processing, the housing features an optimized flow geometry that minimizes backpressure, allowing for easier manual filtration even with viscous samples. Ultimately, this rigorous attention to manufacturing quality ensures batch-to-batch reproducibility, allowing laboratories to standardize their workflows with total confidence.

Key Polyethersulfone (PES) Membrane Characteristics

• Polyethersulfone (PES) membrane with hydrophilic affinity
• Low Protein Binding characteristics
• Broad compatibility with aqueous solutions, alcohols, and mild bases
• Ideal for biological samples and culture media
• Verified 0.45 retention rating for clarification

Key Housing Characteristics

• High-purity nan encapsulation housing
• Luer-Lok/ Luer Slip for secure fitting
• 4.91cm² effective filtration area
• nan holdup volume to minimize sample loss

When you integrate these filters into your daily standard operating procedures, you are choosing a workflow that prioritizes efficiency without compromising results. Protecting your downstream processes requires a defensive strategy, and utilizing these verified filters gives you the peace of mind that your work is safe. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

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

Bubble Point (psi)

2.3 bar (33 psi)

Connection Type

Luer-Lok/ Luer Slip

Diameter

25mm

Filtration Area

4.91cm²

Material

Polyethersulfone (PES)

Pack Count

150

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Volume Throughput (ml)

Up to 100ml

Wetability

Hydrophilic

• Biological Sample Prep - The low protein-binding nature of PES ensures maximum recovery of critical enzymes and proteins
• 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
• Ion Chromatography - The extremely low extractable profile of PES provides the clean baselines needed for sensitive IC analysis
• Research & Development - Supports protocols that need to remove particulates, providing the ability to protect analytical instruments
• Quality Control Testing - Optimized for delivering reproducible results by removing particulates in standard pharmaceutical protocols