What is a HPLC Vial Septa?

By definition, According to the definition, Septa is a circular gasket made of Silicone or silica gel. In HPLC analysis, Septa is usually placed in the Cap of the HPLC Vial to seal the HPLC Vial to ensure that there is no gap between the Cap and the Vial.Aijiren's Septa uses a double-sided material, and the combination of PTFE and Silicone makes Septa not easy to deform.

Types of Septa

Pre-slit septa feature a small cut that allows easier needle penetration during sample injection, reducing wear on needles and autosamplers. They are ideal for high-throughput systems where efficiency is key, but may increase the risk of evaporation and contamination due to the less secure seal.

Non-slit septa provide a solid, intact surface that offers a tighter seal, better preventing leaks and maintaining sample integrity. However, they require more force to pierce, which can lead to quicker needle wear, making them more suitable for applications where sample preservation is critical.

In addition to sealing, Septa also has an important function. When HPLC Vials are used in an autosampler, the injection needle needs to be inserted into the HPLC Vial to draw samples. Opening the Cap will cause sample contamination. Therefore, Aijiren provides Caps with Center Hole, and the automatic injection needle needs to pierce Septa into the HPLC Vial to draw samples.

To gain a complete understanding of PTFE/Silicone septa, I recommend exploring this article: Premium PTFE and Silicone Septa: Reliable Sealing Solutions

Why choose HPLC vials septa from Aijiren

Aijiren's HPLC Vial Septa is processed through Aijiren's exclusive process to ensure that Septa is not easy to deform or fall off, and it is not easy to produce debris when the sampling needle of the autosampler is punctured, and it is not easy to fall off and fall into the sample to contaminate the sample.

Generally speaking, Aijiren's HPLC Vial Septa has the Silicone side facing up and the PTFE side facing the sample. Because PTFE is not easy to react with chemicals, it can ensure that the sample is pure and not contaminated. Aijiren's HPLC vial septa and Caps are installed and fixed, which is convenient for customers to use.

Four factors to consider when choose a Hplc Septa

1.Chemical compatibility is essential for preventing reactions or analytical contamination between the septa material and the sample and solvents.

2.In order to reduce the amount of background noise or interfering compounds that enter the chromatographic separation, the septa should also have minimal bleed properties.

3.Furthermore, for maximum performance, the septa's morphological characteristics are crucial. It should be stretchy enough to create a tight seal yet still be simple to puncture with the HPLC needle.

4.The thickness and layout of the septa should permit correct needle insertion while maintaining a strong seal afterward.

HPLC Vial Septa produced by Aijiren is usually white, red, and blue. Silicone and PTFE use different colors to distinguish the front and back. In addition to HPLC Vials, Aijiren also produces Septa from Headspce Vials, Septa from Sample Storage Vial, and Septa from COD Test Tube. This is the end of the introduction to HPLC vial septa. I hope that after reading this article, you can understand what HPLC Vial Septa is used for. Welcome to purchase Septa from Aijiren.

What to Pay attention to

To avoid any potential problems, the vial septa must be regularly inspected and replaced. Septa can deteriorate over time, which might increase sample contamination, cause leaks, or cause the integrity of the seal to be lost. As a result, it is advised to replace the septa according to the manufacturer's recommendations or if wear and degradation indicators are noticed.

Contact us now

If you want to buy or know more about HPLC Septa & closures of Aijiren, please contact us by the following five ways. We will reply to you as soon as possible.

1.Send us a message via the form below
2.Contact our online customer service at lower right window
3.Whatsapp me directly: +8618057059123
4.Mail me directly:market@aijirenvial.com
5.Call me Directly:8618057059123

If you're looking for a detailed overview of PTFE/Silicone septa, I suggest checking out this article: Premium PTFE and Silicone Septa: Reliable Sealing Solutions

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