Membrane syringe filter 0.22 micron sterile syringe filters

PES (Polyethersulfone ) syringe filter is natural hydrophilic which makes is an ideal choice (highly recommended) for aqueous solutions and alcohols. It’s not necessary to treat the filter membrane surface with wetting agents.

Uniform aperture,Thin texture,Low flow resistance,High filtration speed,Little absorption,All items are quality tests for filter efficacy and housing integrity. The housing is pressure tested for use with up 75 psig (5.0 bar) of pressure.

Syringe Filters with hydrophobic PTFE membranes can be used for filtration of strong solvents, acids and alkalis. Not suitable for filtration of aqueous liquids. Filters with hydrophilic PTFE can be used for filtration of strong solvents, acids and alkalis. However, these syringe filters can also be used for the filtration of aqueous liquids, which makes this type very versatile.

Polyethersulfone filter has the characteristics of high flow rate, low extraction loss, and higher mechanical resistance than cellulose membrane. It is suitable for biological, pharmaceutical, sterilization and filtration. The membrane is sealed in the polymer shell without using any adhesive. Each unit is ETO or gamma ray sterilized and guaranteed to be pyrogene-free.

A syringe filter (or wheel filter) is a single-use, membrane-based device used for the removal of particulate impurities from small (≤ 100 mL) liquid samples. Selected based upon the desired end application, disposable syringe filters are commonly used in labs for fast and efficient filtering, material purification, or even sterilization.

PTFE syringe filters are made of Polytetrafluoroethylene (PTFE) membrane and a polypropylene overmold housing.

PTFE is hydrophobic and needs to be pre-wetted before being used with aqueous solvents. Used for: corrosive solvents, strong acids, alcohols, alkalis, aromatic hydrocarbons. Not suitable for: water-based samples.

Ideal for use with aqueous and organic solvents, Nylon Syringe Filters are an excellent choice for filtering high-performance liquid chromatography samples. Nylon syringe filters are durable, tear resistant and wet evenly.
PES (Polyethersulfone ) syringe filter is natural hydrophilic which makes is an ideal choice (highly recommended) for aqueous solutions and alcohols. It’s not necessary to treat the filter membrane surface with wetting agents.

Aijiren’s Syringe Filters are high quality, well packaged and sold at a fair competitive price. They are available in most of the major membrane materials including Nylon, PTFE, PES, MCE, PVDF, CA, PP, and GF which are supplied in 13mm, 17mm, 25mm and 30mm formats in virgin polypropylene housings.

Polyvinylidene difluoride (PVDF):?designed for high tensile strength, high solvent resistance, and low protein binding, making them suitable for biomedical filtration, sterilization filtration, and HPLC sample preparation. pH range ~1-14.

Selected PES syringe filters provide a cleaner sample extract by removing interfering materials and fine particles down to the rated pore size. Performing a syringe filtration step before chromatographic injection helps ensure more consistent and reliable results, and helps protect delicate instruments and extend column life.

The advantages of Syringe Filter: The low extractable membrane and shell ensure that no filter contaminants are added to your samples. Aijiren performs performance tests under actual HPLC conditions. The integrated 1mm borosilicate glass prefilter (30mm device) ensures higher confidence in samples with high solids content.

Aijiren Tech’s syringe filters are a complete range of non-sterile disposable syringe filters for reliable sample preparation. Repeatable membrane quality and automated production processes ensure that particles are removed from each sample, extend the service life of the analytical column, and minimize damage to the inlet or valve.

The advantages of nylon: 1. Toughness 2. Wear resistance 3. Smoothness 4. Light weight 5. Insect resistance 6. Anti-mold and the material is not easy to generate static electricity, deformation, pilling and ageing.

Feature and benefits: 0.2 ¦Ìm hydrophobic air filters are excellent industrial air filter media. Testable by water break through (WBT) test or bubble point testing.Passes USP Class VI biosafety tests for plastics. Manufactured in clean room facilities. Range of filtration areas from 4¨C2000 cm2 to support filtration volumes as small as one liter and as large as a large tank vessel

Disposable syringe filter devices are designed to provide fast and efficient filtration, premium quality and economy. The membrane could be PTEF, PVDF, PES, Nylon, MES, PP, CA, and can be suitable for different situations.

Polypropylene is compatible with acetone, ethyl acetate, methanol, isobutanol, methanol and methyl ethyl ketone. Polypropylene is incompatible with cyclohexane, ether, dichlorobenzene, pentane, methylene chloride and trichlorobenzene. It is recommended to use gas, disinfectant or autoclave to sterilize products made of polypropylene. The maximum operating temperature is 135¡ãC.

Aijiren’s PVDF syringe filters are hydrophilic in nature and have strong chemical compatibility. They can bring precision to your research and ensure the highest level of performance. Our filter range is designed with female leur-Lock imports and male Leur-slip exports. In addition, these filters have better mechanical resistance and it can withstand high temperatures.

Aijiren disposable MCE syringe filter units are designed to provide clear filtration of aqueous and organic solutions from small volumes up to 100 mL.
MCE syringe filters are made from mixed cellulose ester (MCE) membrane and polypropylene overmolded housing.

Filter sterilization, that is, removing microorganisms by physical means such as screening or filter material adsorption, is a commonly used method of sterilization. The filtration method is widely used, and some materials that need to be sterilized cannot be heated, such as many vitamin solutions. In addition to being used in the production of beverages and drugs, the air is often sterilized by filtration. When we usually do microbiology experiments, the sterilized container is usually plugged with cotton at the outlet, which is actually filtering to remove microorganisms in the air, so that there is no microbial contamination in the air entering the container.

The nylon membrane of the syringe filter should be compatible with the chemical characteristics of the sample. The nylon membrane should be compatible with various water-based and organic solvents. The membrane should also have high resistance to HPLC solvents and chemicals. The 0.45mm aperture ensures that you have enough capacity and throughput to process samples efficiently and quickly.

A syringe filter is a quick, convenient and reliable filter tool used routinely in the laboratory. Because they don’t need to change the membrane and filter cleaning, it’s eliminating the complex and time-consuming preparation.  

Sample preparation for high-throughput Ultra High Performance Liquid Chromatography (UHPLC)/High Performance Liquid Chromatography (HPLC) analysis can be time consuming when using multiple consumables such as a syringe, syringe filter, sample vial, cap, and septum. Aijiren HPLC filters result in faster sample preparation than the normal syringe filter method.

UHPLC Precolumn Filter
• Economical protection against microparticles.
• Extend UHPLC column lifetime.
• Negligible effect on column performance.
• Universal fit—easily connects directly to any brand column.
• Leak tight to 15,000 psi (1,034 bar).
• Does not contribute to system backpressure.
• Does not contribute to band broadening.

In HPLC analysis, the particle size of the chromatographic column packing is small and it is easy to be blocked by impurity particles. Therefore, samples and solvents need to be filtered in advance to remove particulate contaminants and protect the instrument. Ion chromatography, which is commonly used in environmental analysis, also requires that no inorganic pollutants be introduced in sample pretreatment.