Mixed cellulose ester (MCE) filter membrane is made of refined nitrocellulose and added with the appropriate amount of cellulose acetate, acetone, n-butanol, ethanol, etc. It is hydrophilic, non-toxic and hygienic. The MCE filter membrane is mainly used for filtering aqueous solutions, so it is also called a water-based membrane, which is flammable and should be sealed to prevent moisture and fire during storage.
Main applications
1. If the pharmaceutical industry requires autoclaving, water injections, large infusions, Chinese medicine extraction, and beverage filtration to remove particulates can improve the intrinsic quality of medicines and the pass rate of sterility for the sterilization of heat-sensitive drugs (biochemical preparations such as insulin ATP and coenzyme A). Antibacterial thin membrane method for sterility test, using 0.45-micron filter membrane(or 0.3 microns, 0.2-micron filter membrane)。
2. Medicine and health, the detection of C-AMP, C-GMP and bloodworm in human body fluids by the MCE filter membrane, detection of coli-groups in drinking water, surface water, and well water.
3. Analysis and determination of particles and oil insoluble in solution, and determination of water pollution index.
4. Applied to scientific research departments such as somatic cell hybridization and mitochondrial prediction of heterosis.
5. Fine filtration of high-purity water in the electronics industry.
1. If the pharmaceutical industry requires autoclaving, water injections, large infusions, Chinese medicine extraction, and beverage filtration to remove particulates can improve the intrinsic quality of medicines and the pass rate of sterility for the sterilization of heat-sensitive drugs (biochemical preparations such as insulin ATP and coenzyme A). Antibacterial thin membrane method for sterility test, using 0.45-micron filter membrane(or 0.3 microns, 0.2-micron filter membrane)。
2. Medicine and health, the detection of C-AMP, C-GMP and bloodworm in human body fluids by the MCE filter membrane, detection of coli-groups in drinking water, surface water, and well water.
3. Analysis and determination of particles and oil insoluble in solution, and determination of water pollution index.
4. Applied to scientific research departments such as somatic cell hybridization and mitochondrial prediction of heterosis.
5. Fine filtration of high-purity water in the electronics industry.
Matters needing attention
1. The filter membrane must be wet when filtering the liquid. If the filter membrane becomes dry due to disinfection, it must be wetted with sterile water. If the wetting does not affect the flow rate, the filter membrane of all appliances must be disinfected. Then, sterilization and filtration in a sterile room should be carried out in strict accordance with the sterilization operation procedures, with nominal pore diameters of 0.45 micrometers, 0.3 micrometers, and 0.2 micrometers are used. E. coli uses a nominal pore diameter of 0.65 micrometers.
1. The filter membrane must be wet when filtering the liquid. If the filter membrane becomes dry due to disinfection, it must be wetted with sterile water. If the wetting does not affect the flow rate, the filter membrane of all appliances must be disinfected. Then, sterilization and filtration in a sterile room should be carried out in strict accordance with the sterilization operation procedures, with nominal pore diameters of 0.45 micrometers, 0.3 micrometers, and 0.2 micrometers are used. E. coli uses a nominal pore diameter of 0.65 micrometers.
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