Description
| Membrane Type | Hydrophilicity | Chemical Compatibility | Protein Binding | Common Applications Across Fields |
|---|---|---|---|---|
| Cellulose Acetate (CA) | Hydrophilic | Aqueous solutions, limited organic | Low | - Biological fluids - Water sample filtration - Food & beverage analysis |
| Polyethersulfone (PES) | Hydrophilic | Aqueous and some organics | Low | Sterile filtration in life sciences Protein-based drug prep Water and soil extracts |
| Polytetrafluoroethylene (PTFE) | Hydrophobic or hydrophilic | Excellent with strong acids, bases, solvents | Very Low | - Organic solvent filtration (e.g., for GC-MS, HPLC) - Air/gas sterilization - Aggressive chemical sample prep |
| Nylon | Hydrophilic | Aqueous + many organics | Moderate | - General-purpose lab filtration - Environmental water testing - Food & beverage quality control |
| Regenerated Cellulose (RC) | Hydrophilic | Aqueous + polar organics | Low | - Filtration before LC/LC-MS - Pharmaceuticals (drug dissolution testing) - Pesticide/metabolite analysis |
| Polyvinylidene Fluoride (PVDF) | Hydrophobic or hydrophilic | Solvents, acids, aqueous | Low to Moderate | - Protein, enzyme, and peptide filtration - HPLC/LC-MS sample prep - Cell culture and microbial testing |
| Glass Fiber (GF) | Hydrophilic | Aqueous and organic | High | Prefiltration of turbid or particulate-rich samples - Soil/wastewater extracts - Pre-filter before fine membrane filtration |
| Polypropylene (PP) | Hydrophobic | Broad solvent resistance | Low | - Sample clarification - Aggressive chemical filtration - Backup or support filter media |
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