GD/X 25mm Syringe Filter, Nylon Filteration Medium, 0.45um (1500 pcs)
Whatman SKU: 6871-2504

Whatman GD/X Nylon Syringe Filters, 0.45 µm, 25 mm, 1500/Pk - 6871-2504

Whatman positions the GD/X prefilter to intercept coarse particulate before it ever reaches the membrane stage, keeping throughput from tailing off as heavily loaded, coarse-grade samples run through the device. Syringe filters span a wide range of membrane chemistries and pore sizes, so the format can be matched to the sample matrix and solvent system in use. The nylon membrane resists alkaline conditions across a broad buffer range while holding consistent retention across mixed-phase samples and withstands elevated differential pressures. Polypropylene construction maintains a low-dead-volume internal flow path and sheds virtually no extractable material into the sample. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Membrane Characteristics

• Resin melting point runs near 264°C
• Low extractable contribution to sensitive analytical preparations
• Non-fibrous membrane structure resists media shedding into the filtrate
• Hydrophilic surface takes up aqueous samples with no pre-wetting
• Saturation moisture uptake reaches up to 8% by resin weight

Housing Characteristics

• Stable across the full aqueous pH range in routine sample work
• Impact-tolerant polypropylene body withstands routine bench handling without damage
• Withstands standard 121°C steam autoclave cycles without softening or structural distortion
• Polypropylene housing withstands operating temperatures up to 121°C without softening or dimensional distortion.

Clarify your routine aqueous samples in a single pass and cut down on juggling multiple filter types at the bench. Consistent aqueous clarification clears particulates without slowing your bench routine from the first sample of the day through the last. Contact Tisch Scientific for technical guidance on selecting the right filtration product for your specific application requirements.

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

Bubble Point (psi)

2.0 bar (29 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.6cm²

Flow Rate

29

Holdup Volume

1.4ml

Material

Nylon

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

Hydrophilic

• Solvent Filtering - Supports clarification of ester-based and alcohol solvents with precision during routine laboratory sample processing.
• Veterinary Drug Residue Testing - Clarifies meat, milk, and egg extracts ahead of LC-MS/MS screening for drug residues in food-safety laboratories.
• Beverage QC Clarification - Clarifies wine, beer, and juice samples ahead of analytical and microbiological testing in quality control labs.
• Biofuel Particulate Testing - Removes particulate debris from biodiesel and fuel samples ahead of chromatographic QC analysis in fuel testing labs.
• Fermentation Monitoring - Clarifies samples from microbial fermentation for rapid analyte measurement of glucose, ethanol, and metabolite levels.
• Dissolution Testing - Supports accurate drug release profiles by clarifying dissolution samples ahead of HPLC quantitation in QC labs.