GD/X 25mm Syringe Filter, PVDF Filteration Medium, 0.2um (150 pcs)
Whatman SKU: 6872-2502

Whatman GD/X PVDF Syringe Filters, 0.2 µm, 25 mm, 150/Pk - 6872-2502

Whatman pairs a borosilicate fiber depth layer with the finishing membrane inside every GD/X unit, a construction meant to process loads heavy enough to clog a conventional one-stage filter. A sterilizing-grade syringe filter delivers point-of-use sterile filtration in a single-use format, without the housing and gasket maintenance a reusable stainless steel filter holder requires. PVDF provides sterilizing-grade retention at the rated sub-micron pore size while reversing PVDF's natural affinity for protein adsorption and suits HPLC sample preparation with immediate, reliable uptake. Thermal-bonded PP construction leaves no seam for sample to bypass the membrane while sustaining efficient flow on viscous samples and resists degradation from routine sample matrices. Where bacterial contamination must stay out of the sample, manufacturer-tested retention keeps the instrument and downstream assay protected without a housing to maintain or clean.

Membrane Characteristics

• Fluorinated polymer chemistry resists ozone, UV, and ionizing radiation
• Cast membrane structure releases no fibers, unlike depth-media prefilters
• Intrinsic protein binding runs lower than nylon or mixed cellulose ester
• Vapor-phase hydrogen peroxide decontamination cycles leave the membrane intact
• Low ionic extractables preserve baseline stability in conductivity-based ion chromatography detection

Housing Characteristics

• Housing retains dimensional stability and seal integrity through elevated-temperature operation up to 121°C.
• Withstands standard 121°C steam autoclave cycles without softening or structural distortion
• Rigid polypropylene body maintains its geometry through routine filtration pressure
• Translucent housing wall allows visual confirmation of sample flow during filtration

Reproducible separations start with samples that reach the column free of particulates. Upstream sample clarification keeps your separations clean and reproducible across your HPLC and UHPLC methods. Request Whatman's lot documentation and performance history to support your protocol validation.

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

Bubble Point (psi)

1.8 bar (26 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.6cm²

Holdup Volume

1.4ml

Material

PVDF/GF

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

150

Pore Size (µm)

0.2

Prefilter (Yes/No)

Yes

Prefilter Material

Glass Microfiber (GMF)

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophobic

• QuEChERS Extract Prep - Removes co-extracted waxes and pigments from QuEChERS extracts, protecting GC-MS and LC-MS systems during pesticide testing.
• 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.
• High-Particulate Filtration - Integrates a glass microfiber prefilter stack that clears heavy solids, extending membrane life for tough samples.
• Spectroscopy Prep - Provides optical clarity and low background interference, ideal for UV-Vis and fluorescence sample preparation work.
• IC Guard Filtration - Removes particulates from aqueous samples before ion analysis, keeping detector cells free of fouling between injections.