Sterile MicroPlus -21 STL Membrane, w/ 3.1mm White Grid for Membrane-Butler, 0.45um, 50mm SKU: 10407734

Cellulose Nitrate (CN) Membrane Filters - 10407734

The Whatman 10407734 combines a controlled pore size distribution with low extractable levels, ensuring the data accuracy that sensitive analytical methods require. Designed for laboratory performance, verified 0.45 pore distribution across the Hydrophilic membrane surface guarantees batch-to-batch consistency in particle capture and analyte passage. Lot-level verification of pore size, flow rate, and physical dimensions ensures that membrane performance remains predictable when scaling from method development to routine analysis.

Material Specifications

• Dissolves completely in specific organic solvents, enabling full recovery of captured particles from the membrane surface for downstream gravimetric, chemical, or spectroscopic analysis.
• Surface retention characteristics allow captured particles and microorganisms to remain on the membrane face, supporting direct microscopic examination and physical recovery of collected material.
• Validated Gamma sterilization process delivers documented SAL (Sterility Assurance Level) compliance for critical pharmaceutical and biological applications.
• Cellulose nitrate membranes feature a narrow pore size distribution and low extractable levels, providing the controlled retention characteristics required for gravimetric and particulate analysis.
• 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.

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. Because cellulose nitrate dissolves completely in organic solvents like acetone and amyl acetate, you can recover every captured particle from the membrane surface for downstream gravimetric, spectroscopic, or chemical analysis. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

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

Bubble Point (psi)

40.6psi

Color

white

Diameter

50mm

Extractables

low

Filtration Area

19.63cm²

Flow Rate

60ml (Water)

Grid (Yes/No)

Yes

Material

Cellulose Nitrate (CN)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

121°C

Membrane Thickness (µm)

145um

Pack Count

100

pH Range

4-8

Pore Size (µm)

0.45

Sterility

Sterile

Sterilization

Supplied Sterile (Single Use)

Support Material

None

Wettability

Hydrophilic

• Environmental Compliance - Documented retention characteristics at standard pore ratings support reproducibility in regulated testing programs.
• Microscopy Examination - Particles remain on the membrane surface for direct visual inspection, supporting identification and classification.
• Bioburden Monitoring - Surface retention keeps captured organisms accessible for direct incubation and enumeration without transfer steps.
• Routine Sample Prep - Uniform microporous matrix provides consistent flow rates and reliable particle retention for general aqueous solutions.
• Aerosol Analysis - Low tare weight and acid digestibility enable chemical characterization of airborne particulates from air sampling.
• Colony Enumeration - Gridded surface variants facilitate accurate plate counting of captured microorganisms under standard magnification.