GD/XP Syringe Filter, PVDF Filteration Medium, 0.45um (150 pcs)
Whatman SKU: 6973-2504

Whatman GD/XP PVDF Syringe Filters, 0.45 µm, 25 mm, 150/Pk - 6973-2504

Whatman's brand recognition and documented performance history support specification in standardized analytical methods. A syringe filter seats a membrane in a sealed housing that threads onto a standard luer fitting. PVDF resists HPLC mobile phases, alcohols, and mild hydrocarbons while holding consistent absolute retention at the rated pore size and suits HPLC sample preparation and aqueous clarification. The PP housing prevents sample bypass under rated operating pressure while resisting aqueous acids, bases, and alcohols and keeps the fluid path low in extractable contamination. Where analytical results depend on clean samples, syringe filtration removes particulates at the moment of preparation.

Technical Specifications

• Absolute pore size rating gives consistent results across protocols
• Low extractables preserve a clean chromatographic baseline
• Ultra-low protein binding preserves dilute analytes for maximum recovery
• Resists HPLC mobile phases, alcohols, and mild hydrocarbons
• Mechanically durable membrane holds integrity under filtration pressure

Housing Specifications

• Reliable housing-to-membrane seal prevents bypass at rated pressure
• Thermal-bonded construction keeps adhesives out of the fluid path
• Optimized internal geometry minimizes backpressure in service
• Resists aqueous acids, bases, and alcohols in routine sample prep

Upstream clarification pays for itself by keeping your columns clear and your analytical day on schedule. Pre-injection filtration protects the resolution your methods depend on so your retention times and peak shapes stay consistent. 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)

1.2 bar (17 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.6cm²

Holdup Volume

1.4ml

Material

Polyvinylidene Difluoride (PVDF)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

150

Pore Size (µm)

0.45

Prefilter (Yes/No)

Yes

Prefilter Material

Polypropylene (10µm + 5µm)

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophobic

• Western Blotting - Optimized for use in preparing samples for downstream blotting techniques where purity is paramount
• HPLC Sample Prep - PVDF provides a great balance of chemical compatibility and low background noise for sensitive UV detection
• Clarification of Biologicals - Perfect for removing particulates from biological fluids without removing the target biomolecules
• Protein Analysis - Ultra-low protein binding ensures that your expensive protein samples are not lost to the filter matrix
• Biological Fluid Analysis - Protects sensitive downstream instruments from removing particulates that can cause system failure
• Research & Development - Supports protocols that need to remove particulates, providing the ability to protect analytical instruments