GD/X 25mm Syringe Filter, PVDF Filteration Medium, 0.45um (1500 pcs)
Whatman SKU: 6873-2504

Whatman GD/X PVDF Syringe Filters, 0.45 µm, 25 mm, 1500/Pk - 6873-2504

Whatman places a fibrous glass mat before the final membrane in every GD/X device, clearing a turbid sample in one pass through the same housing. Sample preparation for chromatography often ends with a syringe filter on the path to the vial. Hydrophilic PVDF suits HPLC sample preparation with immediate, reliable uptake and keeps HPLC analytes from adhering to the pore surface. The PP housing sustains efficient flow on viscous samples while resisting degradation from routine sample matrices and leaves no seam for sample to bypass the membrane. Where small-volume samples must reach the instrument clean, syringe filtration clears particulates in a single pass.

Technical Specifications

• Hydrophilic surface wets aqueous and HPLC samples without pre-wetting
• PVDF's fluorinated polymer chemistry resists the hydrolytic degradation that can affect nylon membranes under repeated aqueous exposure
• PVDF membrane tolerates standard autoclave sterilization cycles without loss of pore structure or flow performance
• Low extractables preserve a clean chromatographic baseline
• PVDF's fluoropolymer chemistry resists microbial and fungal degradation during extended aqueous processing

Housing Specifications

• Resists stress cracking from aqueous salt and buffer solutions
• Withstands ethylene oxide gas sterilization without embrittlement or structural damage.
• Thermal-bonded construction keeps adhesives out of the fluid path
• The seal formed against the membrane blocks bypass at rated operating 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. Standardize your filtration purchases across every method with volume pricing and documentation from the Tisch Scientific 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

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

• Protein Purification - Facilitates routine clarification of chromatography samples, preventing column fouling without binding target proteins.
• HPLC Prep - Delivers high flow rates for mild organic HPLC mobile phases, ensuring clean baselines and protecting analytical columns.
• Mycotoxin Screening - Clarifies grain and food extracts ahead of HPLC analysis, supporting reliable detection of aflatoxins and other mycotoxins.
• Forensic Toxicology Screening - Clarifies urine samples ahead of LC-MS drug screening, supporting reliable detection of abused drugs and metabolites.
• QuEChERS Extract Prep - Removes co-extracted waxes and pigments from QuEChERS extracts, protecting GC-MS and LC-MS systems during pesticide testing.
• Beverage QC - Clarifies wine, beer, and juice samples ahead of HPLC testing for organic acids, sugars, and preservatives.