Sterile MicroPlus -21 STL Membrane, w/3.1mm Black Grid for Membrane-Butler 0.45um 47mm Circle 400pcs SKU: 10407112

Cellulose Nitrate (CN) Membrane Filters - 10407112

The Whatman 10407112 combines a controlled pore size distribution with low extractable levels, ensuring the data accuracy that sensitive analytical methods require. Built for consistent results, precision-manufactured Hydrophilic membrane with a verified 0.45 pore structure delivers consistent retention across the full operating range. Precision manufacturing ensures that each membrane disc delivers the rated retention, flow rate, and surface consistency that analytical and microbiological methods require.

Material Specifications

• Pre-sterilized packaging eliminates the need for in-house autoclaving, reducing preparation time and ensuring consistent sterility from lot to lot.
• 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.
• Surface retention characteristics allow captured particles and microorganisms to remain on the membrane face, supporting direct microscopic examination and physical recovery of collected material.
• Naturally hydrophilic and compatible with aqueous solutions, cellulose nitrate delivers high flow rates and rapid wet-out without requiring pre-conditioning or surfactant treatment.
• Cellulose nitrate membranes feature a narrow pore size distribution and low extractable levels, providing the controlled retention characteristics required for gravimetric and particulate analysis.

Whether your method calls for gravimetric analysis, particle visualization, or microbial enumeration, the pore consistency and surface uniformity documented above ensure that your results reflect the sample — not the filter. In this context, low extractable levels in cellulose nitrate membranes mean your blank measurements stay minimal, giving you the confidence that weight changes in gravimetric analysis reflect actual sample content rather than membrane artifacts. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

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

Bubble Point (psi)

40.6psi

Color

white

Diameter

47mm

Extractables

low

Filtration Area

17.35cm²

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

400

pH Range

4-8

Pore Size (µm)

0.45

Sterility

Sterile

Sterilization

Supplied Sterile (Single Use)

Support Material

None

Wettability

Hydrophilic

• Aerosol Analysis - Low tare weight and acid digestibility enable chemical characterization of airborne particulates from air sampling.
• Biochemical Assays - High protein-binding capacity effectively immobilizes macromolecules, supporting lateral flow and diagnostic testing.
• Gravimetric Particulate Analysis - Dissolves in organic solvents for complete particle recovery and accurate weight-based quantification.
• Bioburden Monitoring - Surface retention keeps captured organisms accessible for direct incubation and enumeration without transfer steps.
• Water Quality Testing - Narrow pore distribution retains indicator organisms consistently for regulatory compliance in environmental laboratories.
• Microscopy Examination - Particles remain on the membrane surface for direct visual inspection, supporting identification and classification.