The Laboratory Membrane Filters category covers equipment and consumables used to separate liquids, solids and dissolved components by differences in volatility, solubility, particle size, density or affinity. These products are not isolated purchases, because their performance is tied to the sample, surrounding equipment and the way the wider method is carried out.
Correct glassware geometry, membrane selection, vacuum level and chemical compatibility directly affect recovery, purity and processing time. This is why laboratories should assess chemical compatibility, temperature and vacuum conditions, pore size or retention, and connection size before choosing a product, rather than relying only on capacity, appearance or headline specifications.
Most methods combine sample preparation with a selected separation mechanism, controlled transfer or heating, collection of the target fraction and cleaning between runs. When each stage is matched correctly, laboratories in chemistry, food, environmental, pharmaceutical, industrial and teaching laboratories can work more consistently and manage changeovers, replenishment and maintenance with fewer interruptions. As part of the Distillation, Separation & Filtration Equipment range, these products can be selected with the equipment and consumables used before and after this stage.
Our Laboratory Membrane Filters range
Our collection covers these membrane filters autoclavable, choosing cellulose acetate (ca) over cellulose nitrate (cn), benefits of polyamide (nylon) membranes, and choosing between a 0.2 µm and 0.45 µm pore size, giving laboratories practical choices for routine work and more specialised applications.
These membrane filters autoclavable
Most Sartorius CA and CN membranes can be sterilised via autoclaving at 121°C, but always check the specific product documentation for temperature limits and recommended sterilisation methods. Selection should take account of chemical compatibility, temperature and vacuum conditions, and pore size or retention. It is also worth checking cleaning, replacement and storage requirements before the item becomes part of a routine procedure. Within the wider method, these products help laboratories build a compatible separation train that protects recovery and reduces unnecessary transfers. They should be reviewed together with associated consumables, accessories and cleaning requirements.
Choosing Cellulose Acetate (CA) over Cellulose Nitrate (CN)
CA membranes are best for filtering protein-containing liquids due to their extremely low protein binding. CN membranes are generally used for microbiological testing and aqueous filtration where protein recovery is not a priority. For routine and specialised work, assess temperature and vacuum conditions, pore size or retention, and connection size. Matching these points early helps avoid adapters, consumables or operating limitations being discovered after purchase. This is especially valuable when teams need to build a compatible separation train that protects recovery and reduces unnecessary transfers. Consistent handling also reduces the risk of variation between batches or operators.
Benefits of Polyamide (Nylon) membranes
Polyamide membranes offer broad chemical compatibility with many organic solvents and alkaline solutions, making them more versatile than cellulose-based membranes for complex chemical mixtures. Selection should take account of pore size or retention, connection size, and separation principle. It is also worth checking cleaning, replacement and storage requirements before the item becomes part of a routine procedure. In practice, this supports efforts to build a compatible separation train that protects recovery and reduces unnecessary transfers. It also gives staff a clearer and more repeatable procedure when multiple users or shifts share the same equipment.
Choosing between a 0.2 µm and 0.45 µm pore size
A 0.2 µm pore size is typically used for cold sterilisation (removing bacteria), while 0.45 µm is standard for general clarifying and removing fine particulates from samples before analysis. For routine and specialised work, assess connection size, separation principle, and sample volume. Matching these points early helps avoid adapters, consumables or operating limitations being discovered after purchase. Used correctly, this part of the range helps laboratories build a compatible separation train that protects recovery and reduces unnecessary transfers. The result is a setup that is easier to train, document and maintain.
Featured brands
Thermo Scientific is known for analytical, life-science and general laboratory instrumentation, BRAND is known for liquid-handling products, volumetric labware and supporting accessories, DWK Life Sciences is known for laboratory glassware, bottles and precision handling products, and VACUUBRAND is known for chemistry vacuum pumps, controllers and vacuum-network components. Compare each BRAND by chemical compatibility, temperature and vacuum conditions, pore size or retention, and connection size, and check what is included with the product so the complete setup is clear before ordering.
Why choose LabFriend for Laboratory Membrane Filters
LabFriend helps laboratories source laboratory membrane filters with the performance, compatibility and supporting items required for the application. Our team can discuss chemical compatibility, temperature and vacuum conditions, pore size or retention, and connection size, including details that are easy to overlook when building a new workflow or replacing an older product. The online store combines competitive pricing, transparent lead times and dependable Australia-wide delivery across equipment and consumables.
Plan the full laboratory distillation, extraction, separation and filtration method by reviewing laboratory membrane filters alongside the products used immediately before and after it. Useful related areas include Laboratory Syringe Filters and Laboratory In-Line Filters, which can help complete the surrounding workflow. LabFriend makes it practical to consolidate these requirements, compare live online options and arrange reliable shipping to laboratories throughout Australia. Add the items you need to your cart and select Instant Quote.
