With membranes the material defines the application. PES where low protein binding matters, gridded MCE for culture and colony counting, PTFE or nylon for organic solvents. Check solvent compatibility first.
Anodisc is an inorganic alumina membrane with uniform pores and a flat surface, used where the sample is examined directly on the filter — electron microscopy, microplastics and particle counting.
Choosing by membrane material
| Material | Character | Typical use |
|---|---|---|
| PES | Low protein binding, fast flow | Biological samples, media sterilisation |
| MCE | Gridded, hydrophilic | Water microbiology, colony counting |
| Nylon | Broad solvent resistance | HPLC mobile-phase filtration |
| PTFE | Hydrophobic, highly resistant | Organic solvents, acids, gas filtration |
| Anodisc | Inorganic alumina, uniform pores | Microscopy, particle counting |
Products
Membrane Filters 8
Pricing depends on quantity and lead time, so we quote individually. Just send the No. and quantity.
CYTIVA Whatman
PTFE Membrane Filter WPT, 47mm 0.5μm
CYTIVA Whatman
Nuclepore PC Membrane Filter, 25mm 0.6μm, Polycarbonate
CYTIVA Whatman
Nylon Membrane Filter, 47mm 0.45μm
CYTIVA Whatman
CA Membrane Filter, 47mm 0.2μm, Cellulose Acetate
CYTIVA Whatman
CN Membrane Filter, 47mm 0.45μm, Cellulose Nitrate
FAQ
Frequently asked
0.45µm or 0.2µm?
0.45µm is standard for clarification and water microbiology. Use 0.2µm for sterile filtration where bacteria must be fully removed.
Are sterile and non-sterile versions available?
Yes. Gridded MCE membranes for microbiology come individually sterile-packed; general filtration grades ship non-sterile.
More categories
Related product areas
Membrane Filters — need a quote?
Send the No. and quantity — we’ll come back fast with pricing and lead time.