Pura Disc 13mm PVDF Syringe Filters, 0.45um, 2000 Pk
Whatman SKU: 6765-1304

Whatman Puradisc PVDF Syringe Filters, 0.45 µm, 13 mm, 2000/Pk - 6765-1304

Whatman maintains in-house specialists who set and verify material specifications separately for its cellulose, glass-fiber, and polymer membrane chemistries, tailoring quality control to how each one behaves in use. A syringe filter dispenses filtrate directly into an autosampler vial, without the intermediate collection vessel a bulk vacuum filtration setup typically needs. PVDF delivers absolute cutoff at rated pore size while loading aqueous mobile phases on first contact and shields hydrophobic backbone from protein with surface modification. Thermal-bonded PP construction leaves no seam for sample to bypass the membrane while standing firm against aqueous acids, bases, and alcohols during regular handling and maintains a low-dead-volume internal flow path. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Technical Specifications

• Gamma irradiation sterilization causes no chain scission unlike polypropylene membranes
• Intrinsic protein binding runs lower than nylon or mixed cellulose ester
• Chemical compatibility spans the full pH 1 to 14 range
• Low extractables preserve a clean chromatographic baseline
• Limiting oxygen index runs high, supporting flame resistance and low smoke

Housing Specifications

• Translucent housing wall allows visual confirmation of sample flow during filtration
• Housing tolerates elevated-temperature aqueous and solvent sample filtration up to about 80°C without softening.
• Stable across the full aqueous pH range in routine sample work
• Withstands standard 121°C steam autoclave cycles without softening or structural distortion

Filtering buffers, reagents, and aqueous samples keeps your preparation moving and consistent. General-purpose aqueous filtration supports the sample types you handle every day from reagent and buffer preparation through routine sample clarification. Review our Chemical Compatibility Chart, or ask technical service to confirm chemical compatibility for your specific application.

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

Bubble Point (psi)

1.2 bar (17 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

2000

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Forensic Toxicology Screening - Clarifies urine samples ahead of LC-MS drug screening, supporting reliable detection of abused drugs and metabolites.
• Immunochemistry Research - Delivers exceptional chemical resistance for mild organic mixtures used in sensitive immunochemical research applications.
• Beverage QC - Clarifies wine, beer, and juice samples ahead of HPLC testing for organic acids, sugars, and preservatives.
• Protein Purification - Facilitates routine clarification of chromatography samples, preventing column fouling without binding target proteins.
• Capillary Electrophoresis Prep - Clarifies CE sample buffers and matrices, supporting stable electropherogram baselines for accurate results.
• Spectroscopy Prep - Provides optical clarity and low background interference, ideal for UV-Vis and fluorescence sample preparation work.