Pura Disc 13mm PTFE Syringe Filters, 1.0um, 100/Pk
Whatman SKU: 6784-1310

Whatman Puradisc PTFE Syringe Filters, 1 µm, 13 mm, 100/Pk - 6784-1310

Whatman's filtration expertise, refined across a century-plus of disciplined manufacturing, has made its name synonymous with laboratory-grade quality worldwide. Syringe filters replace the separate holder and vacuum apparatus of bulk filtration with a single disposable unit, eliminating cleaning between samples. The PTFE membrane withstands aggressive organics that degrade other media while repelling water and passing gases and solvents freely and suits solvent filtration where other membranes fail. Polypropylene construction maintains a low-dead-volume internal flow path while pressing snugly against the membrane during the pass and maintains structural integrity through elevated-temperature sample preparation. Where analytical results depend on clean samples, the preparation step stays consistent from sample to sample through a pre-tested syringe filter.

Technical Specifications

• Node-fibril microstructure resists compaction under sustained operating pressure
• Low non-specific protein binding preserves recovery of biomolecules and therapeutic proteins during filtration
• Non-wetting pore surface blocks liquid water while passing water vapor freely
• Membrane integrity holds across repeated autoclave sterilization cycles at 121°C to 134°C
• Absolute pore rating delivers reproducible retention across every protocol

Housing Specifications

• Optimized internal geometry minimizes backpressure in service
• Minimal ionic background from the polypropylene housing supports ion chromatography and trace-metal ICP-MS sample preparation.
• Minimal intrinsic autofluorescence from the polypropylene housing supports background-sensitive fluorescence-based assay work downstream.
• Housing tolerates elevated-temperature aqueous and solvent sample filtration up to about 80°C without softening.

Handling the harsh solvents your methods demand means choosing a filter built to withstand what passes through it, run after run. Solvent-stream filtration handles the solvents and reagents your methods rely on from initial prep through final use. 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.

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)

1

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Spirits Congener Analysis - Clarifies distilled spirits samples ahead of GC analysis, protecting columns from residue during congener profiling.
• Extractables Testing - Clarifies packaging material organic solvent extracts ahead of LC-MS analysis, keeping background low for leachable detection.
• Trace Metals Analysis - PTFE's low metal-extractable profile clarifies acid-digested samples for clean, low-background ICP-MS and ICP-OES results.
• Aggressive Solvents - Clarifies chlorinated hydrocarbons and aromatics without membrane degradation, delivering pure filtrate quality consistently.
• Toxicology Screening - Clarifies protein-precipitated serum, plasma, and urine extracts ahead of LC-MS or GC-MS drug screening analysis.
• Dye and Pigment Analysis - Clarifies dye solutions in DMF, NMP, and other aggressive organics ahead of spectrophotometric color strength testing.