Syringe Filters

PTFE is a hydrophobic membrane that is chemically resistant to almost all solvents. It can be used with corrosive media, such as strong acids, alcohols, alkalis, and aromatics. The unit is readily available, allowing simple, fast and reliable HPLC or GC analysis of ultra-clean small-volume samples. PTFE filters can also be used to prevent moisture from passing through the vents.

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.

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 sterile syringe filter has a bidirectional diaphragm support and Luer lock inlet/outlet, which can be securely mounted on the syringe. The type and pore size of the membrane are printed on each filter for easy identification. All Aijiren syringe filters are 100% integrity tested and manufactured according to ISO 9002 standards. The sterile filter is sterilized by gamma radiation. They are proven to be pyrogen-free, non-cytotoxic, and are blister packs.

Aijiren disposable syringe filter devices are designed to provide fast and efficient filtration of aqueous and organic solutionsfrom small volumes up to 100 mL.

Aijiren Syringe Filter is a comprehensive range of non-sterile disposable syringe filters for reliable sample pre-treatment. Reproducible membrane quality and automated manufacturing processes ensure particles are removed from all samples, extending the life of analytical columns and minimizing injection port and valve damage. The Aijiren syringe filter is available in 0.22um and 0.45um porosity, 4, 13, 25 and 30mm diameters.

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.

The Nylon Syringe Filter produced by Aijiren is mostly used for reagent filtration or sample preparation. Nylon Syringe Filter has different specifications. The filter membrane diameter is 13mm, 25mm and 33mm, which can be selected according to the capacity of the sample. Aijiren provides 0.22μm and 0.45. Two μm specifications are convenient for customers to choose. The Nylon Syringe Filter produced by Aijiren meets customers’ requirements and needs for product preparation.

As an important tool for filtering reagents, the Nylon syringe filter plays a very important role, especially in chromatographic consumables. A slightly larger impurity particle in the reagent may cause clogging of the instrument.

Aijiren’s products enable pharmaceutical companies to increase productivity. Syringe filters and vials reduce HPLC sample preparation time and consumables usage, and track-etched and membranes are also vital to extruding liposomes for encasing and targeting drugs.

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. It is widely used in the sample pre filtration, removal of particles, aseptic filtration of liquids and gases. It is the preferred method to filter small samples before loading into HPLC and GC ,and it is often used with disposable syringe.

MCE Syringe Filter is generally used to filter neutral or partial neutral aqueous solutions, and can be used as experimental sample clarification filtration, liquid chromatography injection filtration and so on. Not suitable for filtering organic solvents and strong acid and alkali solutions. This filter is for one-time use, filtering about 10 ml at a time (specifically, there is a big difference according to the impurities of the filtered liquid), and the filter membrane cannot be disassembled. 0.45¦Ìm can remove conventional impurities and some bacteria visible to the naked eye. Generally used in conjunction with the syringe.

Disposable syringe filters are widely used in labs for quick and efficient filtering, material purification or even sterilization for solutions <250mL, to avoid setting ups of Buchner filters or similar.

The Lab Use Syringe Filter MCE is a versatile filtration tool designed for laboratory applications. Constructed with high-quality mixed cellulose ester (MCE) material, these syringe filters offer excellent chemical compatibility and durability. They effectively remove particulates, microorganisms, and impurities from liquid samples, ensuring enhanced sample purity for accurate analysis.

Elevate your lab’s filtration capabilities with our High Quality PVDF Syringe Filters, designed for uncompromising performance and reliability.

Designed to be compatible for the use on all common automated filtration systems, Standard syringe filters are color coded. Aijiren syringe filters are labeled for method validation and certification. All syringe filters are autoclavable (121 ¡ãC and 1.1 bar for 30 min).

Aijiren disposable cellulose acetate(CA) syringe filter devices are designed to provide clear filterate of aqueous and organic solutionsfrom small volumes up to 100 mL.

PTFE Syringe Filters consist of a polytetrafluoroethylene (PTFE) membrane and a polypropylene overmolded housing. Available in 13 mm and 25 mm diameters and 0.22 μm and 0.45 μm pore sizes. PTFE is the membrane of choice for use with aggressive solvents, liquids, and gases that can attack other membranes.

In HPLC analysis, the particle size of the chromatographic column packing is small and easily blocked by contaminant particles. Therefore, samples and solvents must be pre-filtered to remove particulate contaminants and protect the instrument.
In addition, chromatography commonly used in environmental analysis requires that no inorganic contaminants be introduced during sample pretreatment.

The use of PTFE syringe filters can be used for corrosive solvents, aerosol sampling, degassing agents, exhaust applications and organic-based HPLC filtration. The syringe filter has a variety of different filter covers, and has a wide range of chemical compatibility, and has strong chemical stability and inertia.

With PES syringe filter membrane mechanically strong character, it can handle high-temperature liquids, with great flow rate (better than PTFE), and low protein binding. With these features, PES syringe filters offer superior performance for use with biological samples and media culture. Workable pH range ~3-14.
Nylon: Nylon membrane filters are hydrophilic, flexible, tear-resistant, and autoclavable. They are resistant to a range of organic solvents and suitable for use with high pH samples. Nylon binds proteins. Unsuitable for acidic solutions. pH range ~3-14.
MCE (Mixed Cellulose Ester) syringe filters are an ideal choice when biological samples are involved. Mixed Cellulose is a hydrophilic membrane offering both low protein binding coefficients and exceptional flow rates.

Another way to determine the micron size of columns, 0.45 um for >3 um, and 0.22 um for <3um. 0.45 um membranes are typically used for general filtration and particle removal while 0.2/0.22um membranes, or sterilizing-grade membranes, are most commonly used for solution sterilization (bacteria removal).

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

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 MCE membrane offers exceptional retention capabilities, trapping particles and microorganisms as small as 0.22 μm in size. This fine filtration helps safeguard sensitive analytical instruments, HPLC systems, and other lab equipment from contamination, preserving their optimal performance and extending their lifespan.

Adding a syringe filtration step before the sample injection not only helps to ensure more consistent and reliable results. It also helps protect delicate instruments and extend column life.

Membrane: ?ICP Certified PES (Polyethersulfone)??
Use with: ?Strong bases, alcohols, proteins, peptides
Don¡¯t use with: ?acids, ketones, esters, halogenated or aromatic hydrocarbons.
Sterilization: ?Syringe filters can be sterilized by autoclave at 125¡ã for 15 minutes.
Applications: ?Ion chromatography, tissue culture filtration, filtration of proteins and nucleic acids, high-temperature liquids.