Whatman
ME28 1.2um 47mm 100/Pk SKU: 10400812

Mixed Cellulose Ester (MCE) Membrane Filters - 10400812

Designed to deliver reproducibility and confidence across critical sample types, the 10400812 provides the filtration consistency that method validation demands. Verified 1.2 pore distribution across the Hydrophilic membrane surface guarantees batch-to-batch consistency in particle capture and analyte passage. Consistent surface properties across the full membrane area support uniform particle capture and reliable results in gravimetric, microscopic, and culture-based analytical workflows.

Material Specifications

• Known for excellent wetting properties and high flow rates in aqueous filtration.
• Temperature rating of 130°C provides the thermal headroom required for warm sample processing, heated media preparation, and elevated-temperature analytical methods.
• Mixed Cellulose Ester membranes combine cellulose acetate and cellulose nitrate polymers to deliver a smoother, more flexible membrane surface than pure cellulose nitrate.
• The biologically inert blend of cellulose acetate and cellulose nitrate provides a membrane surface optimized for organism capture and colony enumeration in microbiological assays.
• Hydrophilic by nature, the MCE membrane structure supports high non-specific adsorption for effective organism capture.

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. The high porosity of MCE membranes delivers flow rates that keep your sample throughput practical even at the tighter pore sizes used for bacterial retention and fine particle analysis. For detailed specification sheets, validation documentation, or technical guidance on membrane selection for your specific application, the Tisch Scientific team is available to support your evaluation.

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

Diameter

47mm

Pore Size (µm)

1.2

Sterility

Nonsterile

Wetability

Hydrophilic

• Gravimetric Analysis - Captures total suspended solids from liquid samples on a weighed disc, ensuring accurate mass measurements for reporting.
• Quality Control Testing - Serves as a standard check filter for routine batch purity tests, verifying the absence of visible physical contaminants.
• Sediment Collection - Efficiently harvests precipitates from chemical reactions, allowing for the recovery and drying of the solid synthesis product.
• 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.