pp cap for hplc

These caps form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation, contamination, binding and backing off. Great for everything from liquids, to soaps, to macro-invertebrates.

Screw Cap Vials are universal. Screwing the cap applies a mechanical force that squeezes the septum between the glass rim and the cap. Screw caps form an excellent seal and mechanically hold the septum in place during piercing. No tools are required for assembly.

Caps for screw thread vials are available with either an open hole for autosampler use and standard addition or with a solid top for sample storage. One piece polypropylene cap and membrane are also available. These pierceable screw thread caps are designed for one time use and reduce sample preparation time as there is no cap and seal to assemble.

1. Septa and slit septa are available.
2. Normal Available cap color is Black, other special colors can be also produced.
3. Pre-assembled caps and septa are convenient and minimize contamination from handling.
4. Phenolic caps can be autoclaved.

Caps are made of high quality polypropylene, Caps have the profile of a crimp or snap closure for compatibility with robotic autosamplers, Pre-assembled septa reduces the chance of contamination during sample preparation, while saving sample preparation time in the lab.

We provide the protection of PTFE and the resealing ability of silicone with our septa and seals to fit our autosampler crimp top vials. This seal includes a two sided PTFE septa with silicone in the center.

Caps for screw thread vials are available with either an open hole for autosampler use and standard addition or with a solid top for sample storage. One piece polypropylene cap and membrane are also available. These pierceable screw thread caps are designed for one time use and reduce sample preparation time as there is no cap and seal to assemble.

Polypropylene Screw Cap with Septa – Polypropylene screw cap with precision-fit septa provide an evaporation-proof seal. Bi-layer include silicone and PTFE. Silicone septa for multiple injections. PTFE-lined screw cap for organic samples. Screw caps provide an inert, airtight seal and direct puncture-access to samples with a syringe needle.

8mm screw Caps are made of high quality polypropylene, Caps have the profile of a crimp or snap closure for compatibility with robotic autosamplers, Pre-assembled septa reduces the chance of contamination during sample preparation, while saving sample preparation time in the lab.

Polypropylene Screw Cap with Septa – Polypropylene screw cap with precision-fit septa provide an evaporation-proof seal. Bi-layer include silicone and PTFE. Silicone septa for multiple injections. PTFE-lined screw cap for organic samples. Screw caps provide an inert, airtight seal and direct puncture-access to samples with a syringe needle.

Our 9 mm wide mouth vials and caps are our recommended screw bottles. These vials are compatible with autosamplers and have an opening 40% larger than 8-425 threaded vials, simplifying pipetting and other routine functions. Aijiren Tech provides 9mm clear glass bottles and amber glass bottles, as well as polymer options and qualified glass bottles.

9mm vials are the first choice for modern autosamplers. We focus on improving the safety and integrity of samples, and now provide innovative 9mm caps and 9mm screw bottles to ensure consistent productivity for each separation.

The Snap Cap vial has a wide mouth vial opening of 11mm for easy filling and provides a larger target area for the autosampler needle. It is suitable for most autosamplers. The 12x32mm sample bottle format is high-quality, 33 expanded borosilicate transparent glass type 1 (Type A) or 51A amber glass, with uniform and flat texture.

Aijiren 2ml sample vial is made of transparent Class 1 Class A or Amber, Class 1 Class B, borosilicate glass. The Aijiren vial has a standard graduated patch for easy filling and identification
The PP Snap cap used with the Aijiren Vial system is a convenient alternative to the aluminum seal. The snap cap does not have a good sealing performance without the aluminum seal. It is recommended only for short-term sample placement.

The screw cap produced by Aijiren is engraved with knurling on the side for excellent grip and comfort when applying it to a vial. The silicone rubber/PTFE septa used in the lining can provide an appropriate amount of resistance for the auto-injection needle during the sampling process, so that they can penetrate the sample bottle correctly without damaging the septum or the injection needle.

The 9mm screw vial cap can have a 6mm opening for autosampler use and standard addition, or it can have a solid top for storing samples. A polypropylene cap and diaphragm are also available. These pierceable screw caps are designed for one-time use, and because there are no caps and seals to assemble, the sample preparation time is reduced.

The polypropylene screw cap with diaphragm prevents evaporation and is highly sealed. The double layer includes silicone and PTFE. The 9mm screw cap has a shorter thread, which shortens the sealing time. The silicone septum can be injected multiple times. Screw caps lined with PTFE are used for organic samples. The screw cap provides an inert air-tight seal and can be directly pierced through the sample with a syringe needle.

2ml Snap Top Vial is easy to use and ideal for storing powder samples. Because it is a push-on cap, it is not suitable for transporting liquids, and the audible click ensures a strong seal is formed and the cap is properly aligned. The temperature range of the snap-on vial is 0-125°C, and the temperature range of the cap is -40-70°C.

Clear vial, 33 Expansion borosilicate glass USP Type I, Class A. Amber vial, 51 Expansion borosilicate glass USP Type I, Class B. Graduated write-on marking spot area, measures 0.5, 1.0 and 1.5ml. Strictly quality control to ensure the consistent size of each lot of items. The ever flat-bottomed guarantee consistent matching between vials and truly neck 8mm for Standard Glass insert.

8-425 screw caps and vials are usually used in combination with Shimadzu, Spectra-Physics, Varian and other autosamplers. The vials are made of transparent type A type 1 type A or amber type B type B clear glass, and contain Adhesive label for sample identification.

Aijiren’s 8mm HPLC Vial and PP Cap are the best match for Shimadzu autosamplers. The opening is 8mm and the long thread design ensures the tightness of the cap when tightening. The center hole of the screw thread pp cap also ensures automatic Convenient access to the injection needle.

Aijiren’s 9mm Screw Cap is made of high-quality PP material, and the color can be customized according to customer needs. You can also choose whether to have a center hole. If you need to perform automatic sampling, it is recommended to use a Cap with a center hole to facilitate automatic injection needles sampling.

Polypropylene Screw Cap with Septa – Polypropylene screw cap with precision-fit septa provide an evaporation-proof seal. Bi-layer include silicone and PTFE. Silicone septa for multiple injections. PTFE-lined screw cap for organic samples. Screw caps provide an inert, airtight seal and direct puncture-access to samples with a syringe needle.

Polypropylene screw cap with septum – Polypropylene screw cap with precision fit septum provides anti-evaporation seal. Two layers include silicone and PTFE. Silicone septum for multiple injections. PTFE lining screw cap for organic samples. The screw cap provides an inert airtight seal and holes directly into the sample with a needle.