Pura Disc 25mm Nylon Syringe Filters, 0.45um, 1000 Pk
Whatman SKU: 6753-2504

Whatman Puradisc Nylon Syringe Filters, 0.45 µm, 25 mm, 1000/Pk - 6753-2504

Whatman has built such a strong track record in published methods that laboratories default to citing its name in standardized protocols. Many syringe filters ship with lot-specific quality documentation, giving analysts traceability that an ad hoc bulk filtration setup typically lacks. Nylon arrives in economical bulk packaging for high-volume routine filtration while holding consistent retention across mixed-phase samples and holds dimensional stability under rated backpressure. The polypropylene housing holds its seal true run after run while routing flow to minimize backpressure in service and sustains its dimensional form through high-temperature filtration workflows. When chromatographic methods demand particle-free injections, the column stays clean from run to run, protecting method performance and column life.

Technical Specifications

• Moisture-plasticized amide linkages raise membrane impact toughness over dry resin
• Solvent compatibility extends to both acetonitrile and methanol
• Synthetic polyamide backbone resists microbial and enzymatic degradation unlike cellulose membranes
• Ester- and alcohol-resistant across common laboratory sample preparations
• Alkaline-resistant across a broad range of aqueous buffers

Housing Specifications

• Plasticizer-free polyolefin construction keeps the fluid path clean
• Rigid polypropylene body maintains its geometry through routine filtration pressure
• Minimal ionic background from the polypropylene housing supports ion chromatography and trace-metal ICP-MS sample preparation.
• Standardized luer connection geometry provides secure engagement with standard syringe tips

Filtering buffers, reagents, and aqueous samples keeps your preparation moving and consistent. Consistent aqueous clarification clears particulates without slowing your bench routine from the first sample of the day through the last. Bulk pricing kicks in on larger filtration orders, so ask the Tisch Scientific team for a quote.

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

4.2cm²

Holdup Volume

<100µl

Material

Nylon

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

1000

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Veterinary Drug Residue Testing - Clarifies meat, milk, and egg extracts ahead of LC-MS/MS screening for drug residues in food-safety laboratories.
• Environmental Extract Prep - Clarifies water and soil extracts ahead of trace metals or pesticide-residue analysis for accurate results.
• 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.
• Cosmetics Batch Testing - Filters aqueous lotions, serums, and personal care products for particulate QC and potency assay sampling.
• Cannabis Potency Testing - Clarifies cannabinoid extracts in ethanol or hydrocarbon solvents ahead of HPLC potency and pesticide-residue analysis.