CA Membrane Circle (OE 67), 0.45um Pore Size, 25mm Circle (100 pcs) SKU: 10404006

Cellulose Acetate (CA) Membrane Filters - 10404006

Precision-manufactured Hydrophilic membrane with a verified 0.45 pore structure delivers consistent retention performance across demanding laboratory filtration workflows. Moreover, reproducible separation characteristics define the membrane structure, protecting downstream instruments and preserving sample integrity throughout the filtration process. Because of this, 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

• Naturally hydrophilic and compatible with aqueous biological solutions without pre-wetting or surfactant treatment.
• Cellulose Acetate membranes combine high flow rates with exceptional thermal stability.
• Packaged without sterilization for applications where downstream sterility is achieved by other means or is not a process requirement.
• Particularly well suited for electrophoresis and immunoassay support applications where predictable binding behavior is essential.
• Distinguished by their very low protein binding, making them ideal for protein recovery.

Scaling your method from development to routine production requires membrane consistency at every lot — the documented specifications of these membranes provide the reproducibility needed to validate the filtration step once. For this application, because cellulose acetate produces low levels of UV-absorbing extractables, your chromatographic and spectrophotometric baselines remain stable — reducing the background interference that complicates trace-level analyses. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

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

Bubble Point (psi)

35.0psi

Color

white

Diameter

13mm

Extractables

low

Filtration Area

1.33cm²

Flow Rate

55ml (Water)

Grid (Yes/No)

No

Material

Cellulose Acetate (CA)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

180°C

Membrane Thickness (µm)

135um

Pack Count

100

pH Range

4-8

Pore Size (µm)

0.45

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophilic

• Groundwater Filtration - Filters dissolved metals samples without adsorption, ensuring the filtrate represents the true environmental state.
• Nutrient Analysis - Clarifies water for nitrate/phosphate testing without leaching nitrogenous material that could bias the results.
• Tissue Culture Media - Sterilizes heat-labile media components with minimal hold-up volume, ensuring expensive additives are not wasted.
• Isotope Studies - Used in binding studies where the membrane itself must not interact with the radioactive ligand or the receptor protein.
• Enzyme Sterilization - Preserves enzymatic activity during cold sterilization, preventing the denaturation often caused by surface binding.
• Wine Stability Testing - Filters wine samples to check for colloidal stability, ensuring the product will not precipitate during shelf storage.