Pura Disc 13mm PTFE Syringe Filters, 0.45um, 500 Pk
Whatman SKU: 6783-1304

Whatman Puradisc PTFE Syringe Filters, 0.45 µm, 13 mm, 500/Pk - 6783-1304

Whatman standardizes its manufacturing platform to the point that consistency and thorough lot-level records come as a default, exactly what analytical laboratory work demands. Across analytical workflows, the syringe filter is where particulates leave the sample stream. PTFE delivers absolute particle cutoff at the rated pore size and filters aggressive organic solvents without breakdown. Polypropylene construction resists chemical degradation from routine sample matrices while leaving no seam for sample to bypass the membrane and maintains a low-dead-volume internal flow path. For routine sample preparation across many methods, the syringe filter folds clarification into one disposable step.

Technical Specifications

• Hydrophobic PTFE's low surface energy, near 18.5 dynes per centimeter, extends its repellency beyond water to oils and other nonpolar liquids.
• PTFE retains flexibility and crack resistance at cryogenic temperatures down to -200°C, suiting filtration ahead of liquid nitrogen and ultra-low-temperature sample storage.
• PTFE's fully fluorinated backbone leaves the membrane insoluble in all known organic solvents, avoiding the swelling and pore distortion that can affect less chemically resistant membrane polymers.
• PTFE's absolute pore rating delivers reproducible retention across every protocol
• PTFE retains membrane integrity across repeated autoclave sterilization cycles at 121°C to 134°C

Housing Specifications

• Gamma-stabilized polypropylene formulations tolerate terminal irradiation sterilization without embrittlement or discoloration
• Dilute aqueous acids, bases, and alcohols used in sample prep do not degrade the polypropylene housing
• Optimized internal geometry minimizes backpressure in service
• Withstands ethylene oxide gas sterilization without embrittlement or structural damage.

Filtering aggressive solvents and reagents through a filter that holds up to the chemistry keeps your sample prep reliable. Reliable solvent prefiltration clears particulates from your organic samples from reaction mixtures and crude extracts through further processing. Request blanket-order pricing on your routine filtration purchases, and the Tisch Scientific team will also pull together the paperwork.

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

Bubble Point (psi)

0.6 bar (9 psi) [IPA]

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

13mm

Filtration Area

1.3cm²

Holdup Volume

<25µl

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

500

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Air Monitoring - Ensures precise capture of airborne particulates for environmental analysis in demanding atmospheric monitoring conditions.
• Water Monitoring - After alcohol pre-wet, PTFE's chemical inertness holds up through repeated environmental sample runs without degrading.
• Trace Metals Analysis - PTFE's low metal-extractable profile clarifies acid-digested samples for clean, low-background ICP-MS and ICP-OES results.
• UV Spectroscopy - Clarifies solvent-based samples before UV/Vis analysis, removing scattering particulates for precise, reliable absorbance readings.
• Photoresist Filtration - Clarifies photoresist solutions in organic casting solvent ahead of spin-coating, reducing particulate defect risk.
• Spirits Congener Analysis - Clarifies distilled spirits samples ahead of GC analysis, protecting columns from residue during congener profiling.