Pura Disc 13mm PVDF Syringe Filters, 0.2um, 100/Pk
Whatman SKU: 6779-1302

Whatman Puradisc PVDF Syringe Filters, 0.2 µm, 13 mm, 100/Pk - 6779-1302

Whatman verifies performance ratings at the lot level using process controls that stay uniform across its entire filtration lineup. Sterilizing-grade syringe filters deliver sterile-grade retention as a single-use format, eliminating the autoclaving and cleaning cycle a reusable sterile filtration setup would require. Hydrophilic surface modification shields hydrophobic backbone from protein and wets HPLC samples despite a hydrophobic fluoropolymer backbone underneath. Thermal-bonded PP construction leaves no seam for sample to bypass the membrane while sustaining structural integrity through elevated-temperature filtration operations and stands firm against aqueous acids, bases, and alcohols during regular handling. Where bacterial contamination must stay out of the sample, manufacturer-tested retention keeps the instrument and downstream assay protected without a housing to maintain or clean.

Membrane Characteristics

• Autoclave sterilization cycles leave pore structure and flow performance intact
• Gamma irradiation sterilization causes no chain scission unlike polypropylene membranes
• Low extractables preserve a clean chromatographic baseline
• Limiting oxygen index runs high, supporting flame resistance and low smoke
• Fluoropolymer chemistry resists microbial and fungal degradation

Housing Characteristics

• Optimized internal geometry minimizes backpressure in service
• Medical-grade polypropylene with broad chemical compatibility
• Burst pressure rating provides a wide safety margin above the rated maximum operating pressure.
• PP housing rated to 121°C holds its geometry through high-temperature sample preparation and processing.

Filtering particulates upstream keeps your column running longer between maintenance cycles. Reliable particulate removal protects your instruments and your data before each HPLC, UHPLC, and dissolution run. Ask about a quality certificate, lot documentation, or a blanket-order quote for your filtration order at any time.

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

Bubble Point (psi)

1.8 bar (26 psi)

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

13mm

Filtration Area

1.3cm²

Holdup Volume

<25µl

Material

Polyvinylidene Difluoride (PVDF)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

100

Pore Size (µm)

0.2

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Protein Purification - Facilitates routine clarification of chromatography samples, preventing column fouling without binding target proteins.
• Dissolution Testing - Removes undissolved particles from timed USP 711 dissolution aliquots, preventing skewed potency and release results.
• LC-MS Sample Prep - Delivers low-extractable filtrates that prevent ion suppression, supporting clean baselines for LC-MS analysis.
• Biological Samples - Clarifies protein-rich solutions without loss of target molecules, preserving sample integrity for critical downstream assays.
• Capillary Electrophoresis Prep - Clarifies CE sample buffers and matrices, supporting stable electropherogram baselines for accurate results.
• Beverage QC - Clarifies wine, beer, and juice samples ahead of HPLC testing for organic acids, sugars, and preservatives.