Whatman
AE98 5.0um 50mm 100/Pk SKU: 10400214

Cellulose Nitrate (CN) Membrane Filters - 10400214

Precision-manufactured Hydrophilic membrane with a verified 5.0 pore structure delivers consistent retention performance across demanding laboratory filtration workflows. A uniform Cellulose Nitrate (CN) matrix maintains its rated 5.0 cutoff under the pressures and flow conditions encountered during routine laboratory filtration. Controlled production conditions produce membranes with documented pore size distribution and thickness tolerances, supporting method reproducibility across multiple filter lots.

Material Specifications

• High protein binding capacity makes cellulose nitrate the preferred membrane for Western blotting, dot blotting, and nucleic acid immobilization techniques that rely on efficient surface adsorption.
• Engineered to withstand operating pressures reaching > 10 psi, the construction prevents housing deformation that could compromise membrane retention.
• Surface retention characteristics allow captured particles and microorganisms to remain on the membrane face, supporting direct microscopic examination and physical recovery of collected material.
• Rated for continuous operation at temperatures reaching 80°C, enabling filtration of heated solvents and process fluids without material compromise.
• Cellulose nitrate membranes feature a narrow pore size distribution and low extractable levels, providing the controlled retention characteristics required for gravimetric and particulate analysis.

Maintaining accreditation under ISO 17025 or similar quality frameworks requires documented traceability at every step — the specification compliance of each membrane lot supports your ongoing audit readiness. Cellulose nitrate's dimensional stability through autoclaving at 121°C means your membranes maintain their rated pore structure and physical dimensions from pre-sterilization through final analysis, supporting method reproducibility. Sample quantities for method validation and compatibility testing are available through Tisch Scientific — request a sample to verify performance in your specific workflow before committing to a production volume.

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

Diameter

50mm

Pore Size (µm)

5

Sterility

Nonsterile

Wetability

Hydrophilic

• Gravimetric Analysis - Captures total suspended solids from liquid samples on a weighed disc, ensuring accurate mass measurements for reporting.
• Air Particulate Sampling - Traps airborne dust and pollen on a positioned open-face filter disc for subsequent microscopic or chemical analysis.
• Vacuum Clarification - Utilized in Buchner funnels to rapidly remove particulates from large-volume batches of non-critical laboratory buffers.
• Stack Pre-filtration - Acts as a spacer or depth layer in multi-tier filtration stacks to extend the life of the final downstream membrane.
• Microscopy mounting - Retains microorganisms on a flat surface, allowing for direct staining and enumeration under a high-power microscope.
• Sediment Collection - Efficiently harvests precipitates from chemical reactions, allowing for the recovery and drying of the solid synthesis product.