GD/X 25mm Syringe Filter, PVDF Filteration Medium, 0.45um (150 pcs)
Whatman SKU: 6872-2504

Whatman GD/X PVDF Syringe Filters, 0.45 µm, 25 mm, 150/Pk - 6872-2504

Whatman fits more prefiltration capacity into the GD/X housing without enlarging it, a space-efficient answer for samples too demanding for one filtration pass. Many syringe filters ship with lot-specific quality documentation, giving analysts traceability that an ad hoc bulk filtration setup typically lacks. Hydrophilic PVDF suits HPLC sample preparation with immediate, reliable uptake and keeps HPLC analytes from adhering to the pore surface. The PP housing sustains full structural integrity during elevated-temperature filtration operations while keeping the sample chemically unaltered across the pass and sustains efficient flow on viscous samples. When chromatographic methods demand particle-free injections, the column stays clean from run to run, protecting method performance and column life.

Membrane Characteristics

• Intrinsic protein binding runs lower than nylon or mixed cellulose ester
• Filtration preserves mammalian cell viability, phenotype, and growth
• Absolute pore rating ensures reproducible results between test runs
• Ethylene oxide sterilization cycles leave pore integrity and flow performance intact
• Protein and peptide sample loss to adsorption stays minimal

Housing Characteristics

• Minimal extractable release from the housing supports sensitive analytical work downstream
• Translucent housing wall allows visual confirmation of sample flow during filtration
• Standardized luer connection geometry provides secure engagement with standard syringe tips
• Minimal intrinsic autofluorescence from the polypropylene housing supports background-sensitive fluorescence-based assay work downstream.

Filtering buffers, reagents, and aqueous samples keeps your preparation moving and consistent. Consistent aqueous clarification clears particulates without slowing your bench routine from the first sample of the day through the last. Ask about Whatman's quality documentation to confirm your filtration step meets a recognized laboratory-science standard.

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

Flow Rate

28

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

Glass Microfiber (GMF)

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophobic

• Trace Analysis - Prevents non-specific binding in trace analysis, keeping low-concentration analytes in solution for reliable detection.
• Biological Samples - Clarifies protein-rich solutions without loss of target molecules, preserving sample integrity for critical downstream assays.
• Protein Purification - Facilitates routine clarification of chromatography samples, preventing column fouling without binding target proteins.
• IC Guard Filtration - Removes particulates from aqueous samples before ion analysis, keeping detector cells free of fouling between injections.
• Pharmaceutical QC - Supports routine quality control testing by reliably filtering mild organic solvent mixtures and drug formulations daily.
• Immunochemistry Research - Delivers exceptional chemical resistance for mild organic mixtures used in sensitive immunochemical research applications.