Pura Disc 13mm PTFE Syringe Filters, 0.45um, 100/Pk
Whatman SKU: 6784-1304

Whatman Puradisc PTFE Syringe Filters, 0.45 µm, 13 mm, 100/Pk - 6784-1304

Whatman has built such a strong track record in published methods that laboratories default to citing its name in standardized protocols. Individually packaged and pre-tested, a syringe filter needs no functional check before use the way a shared reusable holder does. Hydrophobic PTFE repels water while passing gases and solvents freely and excludes particles larger than the declared micron limit. The PP housing sustains full structural integrity during elevated-temperature filtration operations while leaving no seam for sample to bypass the membrane and routes flow to minimize backpressure in service. For routine sample preparation across many methods, each analytical run starts with a consistent, particle-free sample without added hardware or a cleaning step.

Technical Specifications

• Stable across a wide operating temperature range for demanding methods
• Node-fibril microstructure resists compaction under sustained operating pressure
• Gas-venting and liquid-blocking function survives repeated autoclave sterilization cycles
• Low non-specific protein binding preserves recovery of biomolecules and therapeutic proteins during filtration
• Water contact angle near 120 degrees marks strong hydrophobicity

Housing Specifications

• Withstands standard 121°C steam autoclave cycles without softening or structural distortion
• Thermal-bonded construction keeps adhesives out of the fluid path
• Low moisture absorption keeps the housing dimensionally stable through humid storage and shipping
• PP housing rated to 121°C holds its geometry through high-temperature sample preparation and processing.

Removing particulates from organic solvents and reagents before they move downstream keeps contamination out of your results. Solvent-stream filtration handles the solvents and reagents your methods rely on across the organic solvents and harsh reagents your methods use. Ask how Whatman's track record as a proven brand supports standardizing your filtration workflow.

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

100

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Aggressive Solvents - Clarifies chlorinated hydrocarbons and aromatics without membrane degradation, delivering pure filtrate quality consistently.
• Mobile Phase Prep - Extends column life by consistently removing particulates from organic HPLC mobile phases before every injection.
• Battery Electrolyte Prep - Clarifies lithium-ion battery electrolyte in carbonate solvents ahead of GC-MS purity and impurity analysis.
• Dissolution Testing - Stops the dissolution reaction and clarifies samples, with low API binding for accurate potency quantitation.
• UV Spectroscopy - Clarifies solvent-based samples before UV/Vis analysis, removing scattering particulates for precise, reliable absorbance readings.
• Polymer GPC Prep - Clarifies polymer solutions in THF ahead of gel permeation chromatography, protecting columns from particulates.