Pura Disc 13mm PTFE Syringe Filters, 0.1um, 100/Pk
Whatman SKU: 6784-1301

Whatman Puradisc PTFE Syringe Filters, 0.1 µm, 13 mm, 100/Pk - 6784-1301

Whatman draws on Cytiva's broader manufacturing oversight while continuing a legacy of filtration work that touches laboratory research, environmental monitoring, and industrial processing alike. A syringe filter with a hydrophobic vent-rated membrane keeps gas and vent lines free of microbial ingress. Hydrophobic PTFE blocks aqueous ingress in vent and gas applications and delivers sterilizing-grade gas and vent filtration. The polypropylene housing routes flow to minimize backpressure in service while pressing snugly against the membrane during the pass and keeps the sample chemically unaltered across the pass. A vent or gas line stays free of airborne bacteria once a hydrophobic, sterilizing-grade membrane is in the path.

Technical Specifications

• Low extractables keep the chromatographic background clean
• Hydrophobic PTFE's low surface energy, near 18.5 dynes per centimeter, extends its repellency beyond water to oils and other nonpolar liquids.
• 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.
• Stable across a wide operating temperature range for demanding methods
• Hydrophobic PTFE retains its gas-venting, liquid-blocking function through repeated autoclave sterilization cycles.

Housing Specifications

• Polypropylene density near 0.90 g/cm3 keeps housing weight low relative to denser engineering plastics
• Dilute aqueous acids, bases, and alcohols used in sample prep do not degrade the polypropylene housing
• Resists stress cracking from aqueous salt and buffer solutions
• Minimal ionic background from the polypropylene housing supports ion chromatography and trace-metal ICP-MS sample preparation.

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 so your downstream method starts with a clean sample. Start a live chat with our customer support technicians for quick answers to your compatibility, sizing, and sterility questions.

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

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

100

Pore Size (µm)

0.1

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Trace Metals Analysis - PTFE's low metal-extractable profile clarifies acid-digested samples for clean, low-background ICP-MS and ICP-OES results.
• Toxicology Screening - Clarifies protein-precipitated serum, plasma, and urine extracts ahead of LC-MS or GC-MS drug screening analysis.
• Water Monitoring - After alcohol pre-wet, PTFE's chemical inertness holds up through repeated environmental sample runs without degrading.
• Agrochemical Formulation QC - Clarifies technical pesticide concentrates in organic solvent ahead of HPLC potency and impurity analysis.
• Fuel Analysis Prep - Clarifies gasoline and other petroleum samples ahead of gas chromatography, protecting injector ports from residue buildup.
• Chemical Synthesis - Resists aggressive organic solvents and corrosive acids for compatibility with harsh synthetic reaction mixtures.