Description
These filters are inherently hydrophilic and made by impregnating a polyester web with nylon, providing high strength and excellent filtration efficiency. They are designed to offer superior performance in both chemical and biological applications with their enhanced durability and filtration speed.
Distinctive Features:
- Inherent hydrophilicity, eliminating the need for pre-wetting with extractable solvents when filtering aqueous solutions.
- High mechanical strength, flexibility, and heat tolerance up to 135°C.
- Excellent chemical stability and compatibility with aqueous, alcoholic, and mild organic solvents.
- High filtration speed and efficiency, providing rapid and reliable filtration.
- High protein binding capacity, making them unsuitable for protein recovery but effective for filtration of other samples.
- Low extractables, ensuring sample purity and consistency.
Recommended Uses:
- Filtration of aqueous solutions, including HPLC solvents, buffers, and biological samples.
- Clarification and sterilization of liquid samples in laboratory and industrial settings.
- Filtration of chemical mixtures, particularly alkaline, alcoholic, and mild organic solutions.
- Tissue culture medium filtration, vacuum degassing, and particle analysis.
- Terminal filtration of inks, photoresists, and other specialized solutions in the electronics and chemical industries.
- Not suitable for filtering highly polar halogenated hydrocarbons, protein samples, or strong acidic solutions.
| Membrane Filter | Material | Hydrophilic/Hydrophobic | Chemical Compatibility | Common Applications |
|---|---|---|---|---|
| Cellulose Acetate (CA) | Cellulose acetate | Hydrophilic | Moderate (not for strong solvents) | Biological sample filtration, protein solutions |
| Polytetrafluoroethylene (PTFE) | PTFE | Hydrophobic (can be treated) | Excellent (resists acids, bases, solvents) | Air/gas filtration, aggressive solvent filtration |
| Nylon | Nylon | Hydrophilic | Good (resists alkalis, alcohols) | Aqueous and organic sample prep, HPLC |
| Polyethersulphone (PES) | Polyethersulfone | Hydrophilic | Good (resists weak acids/bases) | Sterile filtration, cell culture media |
| Polypropylene (PP) | Polypropylene | Hydrophobic | Excellent (broad chemical resistance) | Pre-filtration, aggressive chemical filtration |
| Regenerated Cellulose (RC) | Regenerated cellulose | Hydrophilic | Excellent (resists solvents, low protein binding) | HPLC sample prep, protein filtration |
| Polyvinylidene Fluoride (PVDF) | PVDF | Hydrophobic (can be treated) | Excellent (resists most solvents) | Protein binding studies, western blotting, sterile filtration |
| Mixed Cellulose Ester (MCE) | Cellulose nitrate & cellulose acetate | Hydrophilic | Moderate (limited with solvents) | Microbiological analysis, air monitoring |
Disclaimer: Product images are for illustration purposes only. The actual brand received may vary based on availability, as Labogemdi sources high-quality laboratory products from multiple trusted suppliers. While we are not directly affiliated with specific brands, we ensure that all products comply with laboratory and research-grade standards, meeting the requirements of academic institutions, research laboratories, and industrial applications.
