ME25/21 ST 0.45um 47mm 100/Pk SKU: 10406870

Mixed Cellulose Ester (MCE) Membrane Filters - 10406870

The Whatman 10406870 combines a controlled pore size distribution with low extractable levels, ensuring the data accuracy that sensitive analytical methods require. Reproducible separation characteristics define the membrane structure, protecting downstream instruments and preserving sample integrity throughout the filtration process. Ultimately, 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

• Low tare weight and complete solubility in organic solvents make MCE the standard membrane for gravimetric particulate analysis where method specifications demand minimal blank correction.
• Hydrophilic by nature, the MCE membrane structure supports high non-specific adsorption for effective organism capture.
• Known for excellent wetting properties and high flow rates in aqueous filtration.
• Pre-sterilized packaging eliminates the need for in-house autoclaving, reducing preparation time and ensuring consistent sterility from lot to lot.
• Feature a uniform pore structure that provides consistent flow rates and high throughputs across the full range of standard pore size ratings.

Microbial enumeration methods require complete retention at the rated pore size and a surface that supports colony growth without inhibition, and the membrane specifications above confirm both requirements for your culture-based workflows. MCE's well-documented retention characteristics at standard pore ratings make it straightforward to specify in your method documentation, supporting the reproducibility and traceability that regulated workflows demand. 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

Mixed Cellulose Esters (MCE)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

130°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

• Microscopy mounting - Can be made transparent with immersion oil, allowing for direct light microscopy of retained particles on the surface.
• Yeast & Mold Monitoring - Optimized for the recovery of larger fungal organisms in beverage testing, providing a clear background for ID.
• Black Grid Analysis - Black membrane variants enhance contrast for light-colored colonies, reducing eye strain during manual plate counting.
• Chemotaxis Assays - Acts as a barrier in Boyden chambers, allowing cells to migrate through defined pores towards a chemoattractant source.
• Aqueous Filtration - Biologically inert composition provides high flow rates and consistent reliability for routine laboratory fluid processing.
• Gravimetric Analysis - Maintains structural integrity during filtration and drying, providing precise weight measurements of retained particulates.