Silicone Septa

PTFE disposable syringe filter is a fast, convenient and reliable filter tool, often used in laboratories. It has the characteristics of beautiful appearance, light weight and high cleanliness. Because there is no need to replace the filter membrane and clean the filter, it saves tedious and time-consuming preparation work. It is widely used in laboratories, widely used for sample pre-filtration, clarification and removal of particulate matter, and sterilization and filtration of liquids and gases.

Aijiren’s PTFE syringe filter housing is made of high-quality polypropylene (PP) with high mechanical strength and good chemical compatibility. The filter membrane is made of hydrophobic polytetrafluoroethylene (PTFE). No binders or additives are used, and there is little interference with the analysis. Teflon syringe filters are widely used in laboratories. It does not require membrane replacement and filter cleaning, eliminating complicated and time-consuming preparations. PTFE Syringe Filter is mainly used for sample pre-filtration, clarification and removal of particulate matter, and sterilization and filtration of liquids and gases. HPLC and GC are the preferred methods for small samples.

Aijiren has produced 24mm Screw Neck Closures for more than 20 years. From Cap processing to Septa production, all are produced by fully automated machinery. Aijiren promises to use dust-free workshops to produce Screw Closures to ensure the cleanliness and high quality of the products.

How to choose a precise syringe filter: Aijiren disposable syringe filters come in many types. There are mainly two series, one is hydrophilic and the other is hydrophobic series. The syringe filter has two diameters: 13mm and 25mm. The pore size of the filter membrane is 0.22, 0.45um. Membrane materials include: RC, nylon, PVDF, PTFE, etc. It is important for customers to choose the right membrane.

Aijiren 18mm magnetic screw cap (silver) and silicone/PTFE septa. Cap: The magnetic 18 mm screw cap can be effectively tested on the gas chromatograph autosampler, and the standard aperture of the center hole ensures the effective injection of the autosampler. Septa uses inert PTFE and Silicone bonding, or PTFE and Butyl bonding, these can be provided to customers to choose.

Aijiren’s popular product, Headspace Vial, has two types: Screw Neck and Crimp Neck. The worker in the picture is packing the headspace Vial after it has been produced. After labeling the product, an outer packaging is required. This is multi-layered packaging. It can absorb shock to prevent Headspace Vial from being damaged due to bumps during transportation.

9mm Screw Neck Closures-Polypropylene Screw Cap with two-layer material compound Septa can provide anti-evaporation seal. The double layer includes Silicone and PTFE. This compounded Septa can be used for multiple injections. And it is matched with a PTFE lined screw cap for organic samples. The screw cap provides an inert, air-tight seal and the use of a syringe needle to directly penetrate the sample.

The blue high-quality PP bottle cap of 9mm Screw Neck Closures will be combined with Septa. Aijiren has a unique patented method to combine Silicone and PTFE. Septa produced by this patented method is combined with a chemically inert Cap to avoid excessive evaporation and keep the sample bottle well sealed. It is recommended for short-term storage or liquid chromatography. Aijiren produces a variety of colors of 9mm Screw Neck Closures to choose from to meet different needs.

During Aijiren’s production process, more production is used as a backup. Autosampler Vial with part of the margin is packaged in a carton for packaging. Aijiren’s factory can provide Autosampler Vial, Headspace Vial, COD Test Tube, Syirnge Filter and other different products. Production, so Aijiren has great advantages in exporting products. These advantages have created Aijiren and made Aijiren a well-known supplier of chromatography consumables in China.

The compatibility or chemical resistance of 20mm Grey Butyl Septa with samples and solvents can be consulted by Aijiren’s salesperson. Butyl’s tightness makes 20mm Grey Butyl Septa suitable for multiple injections or storage. The 20mm Grey Butyl Septa has a thickness of 3mm, which has good sealing properties and facilitates the puncture of the autosampler needle. It is not thick enough to affect the puncture. PTFE is the most inert resistance of the septum, and Aijiren’s bonding process makes Septa not easy to fall off.

Aijiren’s butyl and PTFE composite Septa is often used in 20mm Aluminum Crimp Cap. This combination of Closures is suitable for 20mm crimp headspace vials. The 3mm thickness of Septa is convenient for sealing and will not be damaged by puncture. The sampling head. As a factory direct sale, Aijiren saves you the accumulated sales cost of middle-level distributors. The price is more competitive and its own technical advantages provide reliable quality assurance for each batch of products shipped out of the factory, so that customers can use it more assured.

The thread of the magnetic metal cap fits closely with the Headspace Vial, and the thickness of Septa can also ensure that it is slightly squeezed to achieve a sealing effect when the cap is closed by Vial. The Cap with a center hole can facilitate sample injection without leaking reagents. The function of magnetism is to better fit the autosampler.

Aijiren has been engaged in the production of chromatographic consumables for 20 years. The types of products produced by Aijiren include Autosampler Vial, Syringe Filter, COD Test Tube, Headspace Vial, Reagent Bottle, etc. These products need to be packaged and shipped after Aijiren is produced. This uses the packaging workshop in the picture.

The COD Test Tube produced by Aijiren is often used for water quality analysis, environmental monitoring, oxygen demand detection and other chemical experiments. This requires high raw materials for the production of COD Test Tube, and requires stable and inert glass for production. The technical requirements for manufacturers are relatively high. As a factory with decades of production experience, Aijiren can easily handle this task.

Aijiren’s 20mm headspace vial is a popular product of Aijiren, and its corresponding Aluminum Cap with PTFE/Silicone Septa is also a popular product of Aijiren. It is precisely because of Aijiren’s excellent quality and favorable price that Aijiren has become the most well-known chromatography in China. One of the manufacturers of consumables.

Aijiren’s syringe filter with nylon membrane is compatible with a variety of solvents and is very suitable for rapid filtration of most aqueous and organic solutions. Therefore, when the mixture of the sample aqueous solution and the organic solvent passes through the membrane, the fine droplets of the extraction solvent gather and separate from the sample aqueous solution. The nilong syringe filter produced by Aijiren is environmentally friendly and has no centrifugal effect. By filtering the receptor phase, it can provide a higher sample purification rate.

Aijiren is a professional supplier of chromatography consumables. Aijiren not only provides 20mm Crimp Top Closures, but also provides matching Headspace Vial, Hand Crimper and Decrimper. The 20mm Crimp Top Closures has a strong sealing performance, and the combination of rubber and PTFE makes Closures have better sealing performance and is very convenient for automatic injection needle puncture. Aijiren has 20 years of experience in producing gas chromatography consumables. The high-quality products and strict review system have made Aijiren successful until now.

The 9mm screw cap produced by Aijiren has a center hole to facilitate the sampling of the injection needle of the autosampler. The injection needle will penetrate the septa and enter the interior of the vial for extraction. The thread pattern of the 9mm screw cap fits closely with the vial. Septa is slightly squeezed between the cap and vial to fill the gap, so the sealing is extremely high.

The Crimp Closures produced by Aijiren are made of aluminum. This metal Cap is very strong and will not leak air after the Hand Crimper is sealed. Aijiren uses plastic sealed bags to pack 100pcs/pack. If customers need, Aijiren also provides plastic cans. This kind of packaging can reduce squeezing and ensure that each closure is complete.

And the nylon membrane syringe filter produced by Aijiren can be used for alkaline blotting and fixation. If fixing methods such as baking and ultraviolet light 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 a solution such as ethanol or methanol for activation. The nylon syringe filter produced by Aijiren is only for professionals to use for scientific research, not for food.

Aijiren syringe filter features: The syringe filter housing is made of high-quality sanitary polypropylene material (PP). The precise structure ensures smooth filtration, reasonable internal space, and extremely low residual rate. Can withstand pressure up to 7bar. The needle filter has a thread on the edge and has a non-slip function, which is very popular among users. Our membrane comes from a well-known filtration membrane company in China, which guarantees the stable quality and high precision of the membrane pores, and provides maximum protection for your instrument and gas chromatography column. The quality of the filter membrane is stable, and there is no difference between each product, ensuring the consistency of your test results.

Aijiren’s Septa made of high-quality raw materials can protect the seal inside the Vial to a certain extent, and will not break or fall off the cap after the automatic injection needle is punctured. This is to a large extent. Gas chromatography experiments provide convenience, and bring safe and accurate results.

There are two types of packaging for 20mm Crimp Top Closures produced by Aijiren, one is packaged in plastic bags, the other is packaged in threaded plastic cans, and the quantity is 100 per bag/can. Aijiren is packaged in cans. Because 20mm Crimp Top Closures are easily squeezed and deformed during transportation, which affects the sealing effect in the experiment, they are packed in cans.

Autosampler vial kit package
100pcs autosampler vials
+ 100pcs caps (screw caps / crimp caps / snap caps)
+ 100pcs septa ( ptfe/silicone / ptfe/silicone/ptfe or preslit septa)
New Package for safer shippment, lower damage rate

Aijiren¡¯s syringe filter has many different types of membranes. Aijiren can also sell membranes separately. Different reagents need to choose membranes of different materials to avoid the reaction between the membrane and the reagents and affect the experimental results. Aijiren usually recommends customers to choose PTFE, because PTFE is extremely inert and suitable for most reagents.

PVDF Syringe filter has many advantages. PVDF film has high mechanical strength, is not easy to break or curl; it has the advantages of low background, wide solvent compatibility, and excellent coloring ability; in addition, PVDF film can be tested repeatedly after proper treatment. The pore size of PVDF membrane is 0.22¦Ìm and 0.45¦Ìm. 0.22¦Ìm is suitable for proteins with molecular weight less than 20kDa, which can effectively reduce the leakage of small molecular weight proteins. Compared with 0.45¦Ìm PVDF membrane, it has higher protein adsorption rate and protein sequencing yield. For example, the adsorption capacity of insulin and BSA are 1.64 times and 1.58 times that of the commonly used 0.45¦Ìm PVDF membrane, respectively.

The screw closures produced by Aijiren are used for 9mm screw vial. 9mm screw vial is the most commonly used autosampler vial. Because of the 9mm opening and 12*36mm bottle body, it is compatible with most types of autosamplers and the convenience of screw closures It has also become the reason why screw vial sells well.

In addition, the material of Butyl determines that Septa is not easy to deform, even if it is used for a long time, it is stretched. Aijiren uses high-quality raw materials, which ensures that Butyl Septa will not break and contaminate the sample when it is penetrated by the automatic injection needle in time.

The 18mm magnetic screw cap is easy to use and does not require any additional tools, such as a capper and an opener. Samples can be transferred on site, no need to transfer samples in the laboratory. The precision thread ensures the air tightness between the Headspace Vial and the 18mm magnetic screw cap. Magnetic nut can be widely used in various SPME and headspace analysis.