Needle filter material selection description
We are committed to providing technical application solutions to meet customers' various filtering needs. The needle filter produced by the clean workshop has good consistency between batches,From the raw materials and production process to ensure the quality and use value of products, the filtering effect is first-class. It can provide a variety of filter membrane materials and specifications, and also according to customer needsMake it. At present, the commonly used filter materials are nylon, PVDF, PTFE, MCE and acetate fiberVitamin (CA), glass cellulose (GF), polypropylene (PP), polyethersulfone (PES), etc. It is widely used in HPLC, GC and other sample preparation and industrial production laboratory quality detection.Application scope of needle filter
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main performance |
Application scope |
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Mixed cellulose (MCE) |
High porosity, good retention effect Not resistant to organic liquid, strong acid and strong alkali solution High cost performance |
① Filtration of sterilization and granulation in experiment and small production process ② Determination of coliform bacteria in water MCE 2-micron and 5-micron membranes are also used for oil filtration |
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Alkali resistance and organic liquid, natural hydrophilicity |
① Liquid clarification, sterilization and particle filtration ② Filtration of photoresist in electronic industry ③ Filtration of various solvents and Solutions |
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Strong adsorption capacity for protein and other biological macromolecules |
① Bacterial culture, bioengineering and biochemical analysis for medical research and diagnosis ② DNA-RNA hybridization experiment and verification ③ Make liquid scintillation test and super clean preparation of radioactive tracer ④ Electrophoresis, trace element analysis, etc |
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Low protein adsorption |
① Suitable for filtration of low molecular alcohol and oil solution ② Analysis and determination of special components in scientific research |
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Glass fiber has fast flow speed and high temperature resistance |
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① Air pollution monitoring ② Filtration of biomacromolecule precipitates ③ Pre filtration before membrane
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Polypropylene (PP) |
Strong acid and alkali resistance, various organic solvents, natural hydrophobic filter media |
① Pre filtration of chemical laboratory analysis ② It can be used with other terminal filters ③ Suitable for conventional filtration of organic solvents with high particle content
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Polyethersulfone (PES) |
High flux and low protein adsorption |
① Medicine: filtration of biology and serum, terminal filtration of antibiotics for large infusion, etc ② Food: beverage, wine and other terminal filtration ③ Ultra pure water terminal filtration
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Polyvinylidene fluoride (PVDF |
Hydrophobic membrane, non hygroscopic, easy to constant weight It can be sterilized by repeated hot pressing, and its performance remains unchanged After being treated with thin texture, fast flow rate, chemical corrosion resistance and oxidation resistant alcohol, it becomes hydrophilic membrane.
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① Alcohol, acid, alkane, aromatic hydrocarbon, halogenated hydrocarbon and other solvents to remove particles and improve reagent level ② Purification of suspended particles in air and air sterilization in fermentation industry ③ Purification of insoluble matter in oil and weight analysis of solid particles ④ Separation and purification of non-specific protein ⑤ concentration of aqueous solution, separation and recovery of chemical substances
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Polytetrafluoroethylene (PTFE) |
Hydrophobic membrane, high temperature resistant, strong acid and alkali resistant solution with good chemical compatibility, resistant to most chemical solvents, and becomes hydrophilic membrane after being treated with ethanol or isopropanol |
① Clarification and filtration of strong acid and alkali ② Filtration of high temperature liquid and special chemical reagent ③ Clarification and filtration of air or various gases |
