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- Membrane Filters
- Membrane Filter Plain White PTFE 25mm Diameter 0.45µm Pack of 100
Membrane Filter Plain White PTFE 25mm Diameter 0.45µm Pack of 100
Membrane Filter Plain White PTFE 25mm Diameter 0.45µm Pack of 100
- £386.45 excl. VAT
- £463.74incl. VAT
SKU - 1208096
MF025PT045
SKU -
1208096
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Print Page- PTFE membranes
- hydrophobic
- 25mm diameter
- 0.45µm pore size
Naturally hydrophobic, the PTFE membranes are made with polytetra-fluoroethylene laminated with a PP layer. Can be used in air and gas filtration or for chemically aggressive or acid samples. For the filtration of aqueous solutions, you should wet the membrane with isopropanol first.
Available with 0.22µm or 0.45µm pore sizes.
Available with 0.22µm or 0.45µm pore sizes.
Guide to…Membrane Filter Properties
Identifying the filter material most suitable for your application based upon the nature of the liquid or gas you are filtering will ensure the best performance of your filter. Each membrane filter material has differing chemical and physical properties such as hydrophobicity, flow rate, extractables and protein retention making them suited to differing applications. Once you have selected the most compatible filter material, you will need to consider what pore size is most appropriate.
| Membrane Material | Protein binding | Hydrophilic/Hydrophobic | Chemical resistance | Applications |
| Hydrophilic PTFE | Low | Hydrophilic | High | Purification of HPLC organic and solvent/aqueous solutions |
| Hydrophobic PTFE | Low | Hydrophobic | High | Filtration of solvents |
| PES | Low | Hydrophilic | Low/Medium | Purification of tissue culture solutions, buffers |
| PVDF | Low | Hydrophilic | Medium | Filtration of protein solutions |
| NYL | Medium | Hydrophilic | Medium | Filtration of aqueous and solvent/aqueous mixtures |
| CA | Low | Hydrophilic | Low | Filtration of protein solutions |
| CN | High | Hydrophilic | Low | Filtration of aqueous solutions where protein binding is not a concern and microbioloigical applications. |
| RC | Low | Hydrophilic | Medium | Filtration of aqueous and organic solvents and protein recovery applications. |
