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  • CA (Cellulose Acetate)

    Johnson Test Papers’ CA Syringe Filters are purpose built with features designed to bring the highest levels of performance and purity to your research. CA syringe filters are used for the filtration of volumes of up to 100ml. We incorporate a variety of membranes to offer separation and purification solutions for the majority of your laboratory needs. Johnson Test Papers’ CA Syringe Filters are suitable for the filtration of aqueous solutions and for applications requiring maximum sample recovery such as tissue culture preparation, sterile filtration and clarification of aqueous solutions and biological fluids, specimen solutions and protein and enzyme filtration. CA syringe filters combine consistently high flow rates, chemical and thermal stability with very low absorption characteristics. Cellulose acetate syringe filters exhibit very low protein binding, so they are suitable for protein recovery applications. The 0.22μm pore size CA membrane is especially suited for sterilising aqueous solution, buffers, sera and media. They are hydrophilic, making them functional with aqueous and alcoholic media although they have limited solvent resistance. CA syringe filters are also compatible with alcohol and oil. CA syringe filters can also be supplied with the option of a micro-glass fibre pre-filter.

    Key Features
    • Naturally hydrophilic membrane filter
    • Low protein binding: suitable for aqueous protein solutions
    • Nitrate free: suitable for groundwater filtration
    • Uniform pore size structure
    • Extensive pore size specification
    • Cell retention and particle collection
    • Resistant to most organic solutions
    • Very high shape stability in aqueous solutions
    • Chemical compatibility: pH 3 - 7
    • Filtration of samples in aqueous solutions and some organic solvents
    • Filtration of water-soluble oligomers and polymers, especially suited for biological macromolecules
    • Cell retention in liquids
    • Light diffusion measurements
    • Sterilisation
    • Filtration of nitrate free spring water
    Housing Material PP
    Membrane Material Cellulose Acetate
    Pore Size 0.22/0.45μm
    Thickness 110±10μm
    Absorption Small adsorption
    Bubble Point (Water) 0.2μm: 340kpa, 0.45μm: 220kpa
    Chemical Compatibility Stable among pH 3-7, better hydrophilicity, great water Flux and better cutoff effect
    Extractable with water < 1%
    Flow Rate(Water)△P 100Kpa 0.2μm: 23mL/min/cm², 0.45μm: 46ml/min/cm²
    Maximum Operating Pressure(psi) 87
    Maximum Temperature ≤ 50℃
    Inlet Connection Female luer lock
    Outlet Connection Male Slip luer
    Packing Sterile/ No Sterile
    Combi Syringe Filters
    Diameter Sterilisation Pack Size Pore Size Product Code
    13mm Without 100 0.2μM SFC25P020G
    Without 100 0.45μM SFC25P045G
    25mm Without 100 0.2μM SFC25P020G
    Without 100 0.45μM SFC25P045G