Filter Membrane PTFE Hydrophilic, Pack of 100

Description

The Filter Membrane PTFE Hydrophilic, also known as hydrophilic PTFE membrane filter discs, polytetrafluoroethylene membrane filters or laboratory microfiltration membranes, is designed for removing suspended particles from compatible aqueous and organic liquid samples. Manufactured from polytetrafluoroethylene (PTFE) with hydrophilic surface properties, these membrane filters combine the chemical resistance of PTFE with the ability to filter water-based solutions. Unlike conventional hydrophobic PTFE membranes, hydrophilic PTFE membranes do not generally require alcohol pre-wetting before aqueous filtration.

The range includes two nominal pore sizes, 0.22 µm and 0.45 µm, with both variations featuring a 47 mm membrane diameter. These options allow laboratories to select a suitable membrane according to their sample composition, filtration requirements and analytical procedures. The 0.22 µm Hydrophilic PTFE Membrane Filter is suitable for fine filtration applications requiring the removal of smaller suspended particles. It may also be used for selected microbial retention procedures, provided the membrane’s retention performance and filtration process are appropriately validated. The 0.45 µm Hydrophilic PTFE Membrane Filter is commonly used for routine sample clarification, particulate removal and laboratory solvent filtration. Compared with a similar 0.22 µm membrane, its larger nominal pore size generally allows faster liquid flow under equivalent operating conditions. The 47 mm circular membrane design is suitable for compatible laboratory vacuum filtration systems, membrane filtration funnels and filter holders. Correct positioning and sealing are important to prevent liquid bypass and maintain effective filtration.

Hydrophilic PTFE membranes offer broad chemical compatibility, making them useful for filtering many organic solvents, aqueous chemical solutions and mixed-solvent samples. However, compatibility should be confirmed for the specific chemicals, concentrations and operating temperatures involved. These membrane filters are suitable for HPLC mobile phase preparation, analytical sample clarification, environmental testing and routine laboratory filtration. Their hydrophilic properties allow aqueous and compatible solvent-based samples to be processed using suitable filtration equipment. For filtration, carefully position the membrane inside a clean 47 mm filter holder using suitable forceps. Secure the assembly, introduce the liquid sample and apply the required vacuum or pressure according to the filtration equipment manufacturer’s instructions.

Safety Precautions: Verify chemical compatibility before filtration, particularly when handling aggressive solvents, concentrated acids or alkaline solutions. Avoid damaging the membrane surface and confirm the operating pressure, temperature and sterility requirements before use. Each selected variation is supplied as one pack of 100 Hydrophilic PTFE Membrane Filters, available in either 0.22 µm or 0.45 µm pore size. Filtration funnels, membrane holders, vacuum pumps and additional accessories are not included unless specified separately.

LabChoice Australia supplies hydrophilic PTFE membrane filters, laboratory filtration consumables and sample preparation equipment for chemistry laboratories, universities, research institutions, pharmaceutical facilities, environmental testing laboratories and industrial quality control environments.