ME29 3.0um 50mm 100/Pk SKU: 10400714

Mixed Cellulose Ester (MCE) Membrane Filters - 10400714

The Whatman 10400714 combines a controlled pore size distribution with low extractable levels, ensuring the data accuracy that sensitive analytical methods require. Furthermore, reproducible separation characteristics define the membrane structure, protecting downstream instruments and preserving sample integrity throughout the filtration process. As designed, 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

• The biologically inert blend of cellulose acetate and cellulose nitrate provides a membrane surface optimized for organism capture and colony enumeration in microbiological assays.
• Feature a uniform pore structure that provides consistent flow rates and high throughputs across the full range of standard pore size ratings.
• Mixed Cellulose Ester membranes combine cellulose acetate and cellulose nitrate polymers to deliver a smoother, more flexible membrane surface than pure cellulose nitrate.
• 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.
• Non-sterile configuration is suited for analytical sample preparation, mobile phase filtration, and other workflows where pre-sterilization is not required.

Environmental monitoring programs where sample-to-sample comparability determines trend validity benefit directly from the lot-level consistency of these membranes, removing the filter as a variable in your long-term data sets. Low background interference from mixed cellulose ester membranes means your gravimetric measurements reflect the mass of captured particles, not membrane extractables — reducing the blank corrections that add uncertainty to your weight-based analyses. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

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

Bubble Point (psi)

10.2psi

Color

white

Diameter

50mm

Extractables

low

Filtration Area

19.63cm²

Flow Rate

280ml (Water)

Grid (Yes/No)

No

Material

Mixed Cellulose Esters (MCE)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

130°C

Membrane Thickness (µm)

150um

Pack Count

100

pH Range

4-8

Pore Size (µm)

3

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophilic

• Biochemical Assays - High electrostatic properties effectively bind proteins and macromolecules, supporting various diagnostic and research assays.
• Aerosol Analysis - Dissolves completely in acid digestion, allowing for the total chemical analysis of captured airborne metal particulates.
• Bioburden Monitoring - Routine testing of pharmaceutical water loops to ensure bioburden levels remain within safe production specifications.
• 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.
• Chemotaxis Assays - Acts as a barrier in Boyden chambers, allowing cells to migrate through defined pores towards a chemoattractant source.