GD/X 25mm Syringe Filter, Nylon Filteration Medium, 0.2um (1500 pcs)
Whatman SKU: 6871-2502

Whatman GD/X Nylon Syringe Filters, 0.2 µm, 25 mm, 1500/Pk - 6871-2502

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. Sterilizing-grade syringe filters deliver sterile-grade retention as a single-use format, eliminating the autoclaving and cleaning cycle a reusable sterile filtration setup would require. Nylon wets on contact with aqueous samples and stays stable across pH 3 to 12. The polypropylene housing holds its seal true run after run while holding its form through high-temperature sample preparation conditions and stays inert across common laboratory solvents. 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

• Autoclaving at 121°C for 30 minutes leaves pore structure intact
• Synthetic polyamide backbone resists microbial and enzymatic degradation unlike cellulose membranes
• Moisture-plasticized amide linkages raise membrane impact toughness over dry resin
• Alkaline-resistant across a broad range of aqueous buffers
• Common ketone solvents, including acetone, methyl ethyl ketone, and methyl isobutyl ketone, cause no attack

Housing Characteristics

• Translucent housing wall allows visual confirmation of sample flow during filtration
• Polypropylene density near 0.90 g/cm3 keeps housing weight low relative to denser engineering plastics
• Housing retains dimensional stability and seal integrity through elevated-temperature operation up to 121°C.
• Low moisture absorption keeps the housing dimensionally stable through humid storage and shipping

Removing particulates from your buffers and mobile phases extends column life and keeps your baselines steady. Upstream buffer clarification keeps avoidable particulates out of your flow path while keeping the filtrate analytically clean. 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)

2.9 bar (42 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.6cm²

Flow Rate

46

Holdup Volume

1.4ml

Material

Nylon

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

Hydrophilic

• Drinking Water Analysis - Clarifies tap and source water samples ahead of metals, nitrate, and trace-contaminant compliance testing.
• Cosmetics Batch Testing - Filters aqueous lotions, serums, and personal care products for particulate QC and potency assay sampling.
• Beverage QC Clarification - Clarifies wine, beer, and juice samples ahead of analytical and microbiological testing in quality control labs.
• Tissue Homogenate Prep - Pairs a glass-fiber prefilter with a nylon final membrane to clarify particulate-heavy tissue homogenates for analysis.
• QuEChERS Cleanup - Clarifies acetonitrile food extracts after dispersive cleanup, protecting GC-MS and LC-MS systems during pesticide screening.
• Solvent Filtering - Supports clarification of ester-based and alcohol solvents with precision during routine laboratory sample processing.