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 positions the GD/XP prefilter stack to intercept particulate before the final membrane, extending throughput while limiting the extractable metal load a glass-based prefilter would add. A syringe filter dispenses filtrate directly into an autosampler vial, without the intermediate collection vessel a bulk vacuum filtration setup typically needs. The PVDF membrane clarifies samples at the rated pore size and holds up to alcohols and mild hydrocarbon solvents. Polyolefin construction sheds virtually no extractable material into the sample and maintains structural integrity through elevated-temperature sample preparation. For routine sample preparation across many methods, each analytical run starts with a consistent, particle-free sample without added hardware or a cleaning step.

Membrane Characteristics

• Vapor-phase hydrogen peroxide decontamination cycles leave the membrane intact
• Hydrochloric, dilute nitric, and up to 90% sulfuric acid cause no attack
• Fluoropolymer chemistry resists microbial and fungal degradation
• Intrinsic protein binding runs lower than nylon or mixed cellulose ester
• Resistance to hydrolytic degradation exceeds that of nylon membranes

Housing Characteristics

• Housing retains dimensional stability and seal integrity through elevated-temperature operation up to 121°C.
• Optimized internal geometry minimizes backpressure in service
• Low moisture absorption keeps the housing dimensionally stable through humid storage and shipping
• Minimal ionic background from the polypropylene housing supports ion chromatography and trace-metal ICP-MS sample preparation.

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 across your water-analysis and general analytical workflows. 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)

1.2 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

• Beverage QC - Clarifies wine, beer, and juice samples ahead of HPLC testing for organic acids, sugars, and preservatives.
• QuEChERS Extract Prep - Removes co-extracted waxes and pigments from QuEChERS extracts, protecting GC-MS and LC-MS systems during pesticide testing.
• Pharmaceutical QC - Supports routine quality control testing by reliably filtering mild organic solvent mixtures and drug formulations daily.
• Trace Analysis - Prevents non-specific binding in trace analysis, keeping low-concentration analytes in solution for reliable detection.
• Trace Metal Analysis - Uses a polypropylene prefilter stack with minimal ion extractables, supporting clean sample prep for ICP-MS testing.
• Immunochemistry Research - Delivers exceptional chemical resistance for mild organic mixtures used in sensitive immunochemical research applications.