33mm PTFE Syringe Filter

Membrane materials are supplied under the industry’s best names, and ISO9000 certified manufacturing uses the latest manufacturing technology to ensure high quality and consistent products, performed to the highest standards in certified cleanroom conditions. All syringe filters are HPLC certified.

Nylon has excellent flow characteristics, extremely low extractable level and mechanical stability, and can provide the best combination of physical parameters to meet the most stringent analysis requirements of 13mm, 25mm and 33mm diameters. Nylon’s natural hydrophilicity, high protein binding capacity and high dirt adsorption capacity are natural advantages.

0.45 syringe filters are commonly used in research and laboratory settings for a variety of filtration applications. They are known for their ability to remove particles and microorganisms from solutions, making them a valuable tool in many scientific fields. However, with so many options and considerations to take into account when selecting a syringe filter, it is common to have questions and concerns.
In this article, we will address 20 frequently asked questions about 0.45 syringe filters and provide comprehensive answers to help you make informed decisions about your filtration needs.Filter your sample before chromatography instrument, it can help your chromatography instrument. Aijiren lab membrane syringe filter is the best choice.

Aijiren Tech Aijiren Syringe Filters are a comprehensive range of non-sterile disposable syringe filters for reliable sample preparation. Reproducible membrane quality and automated manufacturing processes ensure particulates are removed from each and every sample, extending analytical column lifetime and minimising injection port or valve damage.

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.

Syringe filter is a small, disposable device used for filtering liquids or gases.It consists of a plastic housing with a membrane filter at one end and a female luer lock or luer slip connection at the other end, which allows it to be attached to a syringe or other fluid delivery system.
Syringe filters are commonly used in laboratory and research settings to remove particles, microorganisms, or other impurities from samples before analysis or further processing. The membrane filter in a syringe filter acts as a barrier, allowing only the desired components of the sample to pass through while retaining any larger particles or contaminants.
The choice of membrane material depends on the nature of the sample and the substances to be filtered.

Membrane: HPLC Certified Nylon
Use with: Bases, Most HPLC solvents, Alcohols, Aromatic Hydrocarbons, THF.
Don¡¯t use with: Acids, Aggressive Halogenated hydrocarbons, protein samples (Nylon is a high binder)
Sterilization: Syringe filters can be sterilized by autoclave at 125¡ã for 15 minutes.
Applications: General Laboratory filtration, most HPLC samples

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.

Syringe filter is a disposable filter unit designed to remove impurities from liquids or gases using a syringe as the fluid delivery system.
It consists of a plastic housing with an inlet and an outlet, and a filter membrane positioned between them.
The filter membrane is often made of materials such as polypropylene, polytetrafluoroethylene (PTFE), or nylon.
To use a syringe filter, the liquid or gas to be filtered is drawn into a syringe, and then the syringe is attached to the inlet of the syringe filter.

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.

The syringe filter has the following characteristics:
1. Convenient, readily available, easy to operate, economical and practical.
2. Reliable bacteria retention efficiency ensures the filtering and sterilization effect.
3. Larger effective membrane filtration area: 1.09cm2.
4. High flow rate, high throughput, dead volume no more than 10¦Ìl.
5. Very low protein adsorption.
6. Pass HPLC dissolution test.

In order to filter the particles correctly, you need to find the right size filter. You should choose the diameter of the filter carefully. They usually have sizes of 13mm, 25mm and 30mm. Each of these has a different ability to hold particles. According to the sample size, you can choose the appropriate filter diameter. For example, a diameter of 13 mm can be used for 1-10 ml samples. Similarly, 25 mm PVDF syringe filters can be used for sample volumes of 10-100 ml. Their retention is less than 100 ml.

Instructions for use and precautions:
1. It must be used with disposable syringes and glass syringes. The interface is standard. Put the needle filter on the syringe first, then pour the liquid into the syringe, press the push rod down, and collect the filtered liquid.
2. Do not use a syringe smaller than 10cc, because the small-volume column may cause the pressure to exceed the upper limit and cause damage to the filter membrane.
3. Only for laboratory use, one-time use, non-renewable.
4. The filtrate at the beginning of the part should be discarded. The volume is about the dead volume of the filter. Taking 25mm as an example, discard the first 1mL filtrate; or pre-clean the filter with 1 to 2mL of solution.

Although Aijiren has attractive prices, the focus is still on quality. The membrane materials are provided by the most famous people in the industry, and in the ISO9000 certified production process, the latest manufacturing technology is used, and the production is carried out under the highest standard under certified clean room conditions to ensure high quality and stable products. . All syringe filters are HPLC certified.

PTFE (polytetrafluoroethylene) performance: suitable for water system and various organic solvents, resistant to all solvents, low solubility. It has the characteristics of air permeability and water impermeability, large air flux, high particle retention rate, good temperature resistance, resistance to strong acids, alkalis, organic solvents and oxidants, resistance to aging, non-stickiness, non-flammability, non-toxicity, and biocompatibility. Its related products are widely used in chemical, pharmaceutical, environmental protection, electronics, food, energy and other fields

Aijiren’s PVDF membrane (imported packaging, 6.6¡Á8.5cm, 0.2¦Ìm) is a pre-cut polyvinylidene fluoride (PVDF) imprinting membrane with a size of 6.6¡Á8.5cm and a pore size of 0.2¦Ìm. It is most commonly used for the transfer of protein from gel to membrane in immunoblot (Western blot), and can also be used for adsorption analysis, amino acid analysis, N-terminal protein sequencing, dot and slot blot detection, Glycoprotein color development and lipopolysaccharide analysis, etc.

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.

Aijiren sterile PES syringe filter
100% integrity test, individual packaging, gamma radiation
Diameter: 13mm, aperture: 0.45um, 100/pack
In line with ISO certification, quality is guaranteed
Applications: Preparation of tissue culture media, sterile filtration and clarification of biological fluids, probe solutions, protein and enzyme filtration, hybridization buffers, etc.

This nylon membrane can be used for alkaline blotting and fixation, but if fixing methods such as baking and ultraviolet rays are used, higher nucleic acid detection sensitivity can be obtained. Since the nylon membrane is a hydrophilic membrane, it does not need to be immersed in ethanol, methanol and other solutions for activation. This product is only for scientific research by professionals, and must not be used for clinical diagnosis or treatment, or used for food or medicine, and must not be stored in ordinary residences. For your safety and health, please wear lab coats and disposable gloves for operation.

When using vents, these syringe filters can prevent moisture from passing through. Usable pH range: 1-14. PTFE can be applied to: filtering organic solvents with strong chemical corrosiveness, filtering strong acid solvents, filtering alkali solvents, compatible with gaseous samples, and can handle high-temperature liquids.

Membrane separation technology is hailed as “one of the most promising high-tech developments in the middle of the 21st century”. Among them, microporous membrane separation is the most eye-catching application in the fields of biology, chemical analysis and pharmaceuticals. There is no need to change the membrane and clean the filter, save the complicated and time-consuming preparation work, and is widely used in the laboratory.

Aijiren’s membrane materials are supplied by the best names in the industry and the ISO9000 certified manufacturing is carried out to the highest standards, in certified clean room conditions, using the latest manufacturing technology to ensure a high quality, consistent product. All the syringe filters are HPLC certified.

1.ISO9001 approved
2.Imported from Germany and US to ensure high quality
3.Manufactured in 100,000 class cleaning room
4.Wide range size and customized.
5.OEM service available
6.Low backfround response
7.Board membrane choice with excellent compatibility with aqueous , organic solvent or their mixtures.

Many different types of materials are used in syringe filters. A variety of materials, diameters, pore sizes, and in sterile and non-sterile options are on our list. These syringe filters offer outstanding microfiltration for applications in HPLC, water treatment, environmental, biotechnology, beverages, food, pharmaceuticals, and other fields related.

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).