High Quality 11mm Snap Top Caps with Septa Manufacturer
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 reduce the chance of contamination during sample preparation while saving sample preparation time in the lab. Snap caps provide a secure seal, minimizing evaporation even with volatile samples, The audible click ensures that a secure seal has been formed and the cap is properly applied.
11mm snap top 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 reduce the chance of contamination during sample preparation while saving sample preparation time in the lab. Snap caps provide a secure seal, minimizing evaporation even with volatile samples, The audible click ensures that a secure seal has been formed and the cap is properly applied.
PTFE/Silicone Septa:
PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications where resealability and high purity are critical. Works well for applications where ease of needle penetration is important.
Septa-silica gel has strong repetitive sealability, and it can maintain good close performance after multiple injections; PTFE is a material with better chemical conditions at present, and it can withstand strong acids and alkalis. Two materials After compounding, the bottle can be used for various laboratory purposes such as sealed sampling, chemical storage, and so on.
PTFE/Silicone/PTFE Septa:
A layer of PTFE is laminated to each side of high-purity, medium-durometer silicone to form a septum that is the most resistant to coring while maintaining good resealing characteristics. The PTFE/Silicone/PTFE septum is recommended for the most critical applications such as ultra-trace analysis or where there is a longer time between injections or for internal standard methods. PTFE/Silicone/PTFE septa provide superior performance with any autosampler employing a large diameter, blunt tip needle.
Pre-slit or Not
Chromatography septas can be pre-slit or not and must be considered by evaluating a few factors. A PTFE/Silicone with a slitted septum allows for easier needle penetration as well as to release of the vacuum that forms when a large volume of sample is withdrawn from a vial. If coring or clogging from a narrow needle or needle deflection from highly durable septa material is a concern, then choosing a pre-slit septum is a better choice.
The non-pre-slit septas help to reduce carryover from vial to vial because the resealing characteristics of the septum act as a squeegee to wipe the solution from the outside of the needle. Typically, a non-slit septum exhibits resealing capabilities for a limited number of needle punctures but for long-term storage in the vial, using a new non-punctured septum is best practice.
Company Introduction
1. Founded in 2007, Zhejiang Aijiren, Inc. specializes in chromatography consumables, such as autosampler vial for HPLC, headspace vial, GC vials, micro inserts, septa and caps, syringe filter, etc., covering more than 10,000 square meters, and has clean workshop more than 2000 square meters. 100, 000 class cleaning room;
2. 15 years export experience, export to more than 70 countries, 2000+ customs around the world;
3. More than 10 years of experience in automatic analytica technique
4. Aijiren has its own R&D Center and Quality Control Center to keep products of high quality.
5. All materials are produced at 100,000-grade clean room.
6. Passed ISO9001:2015 quality management system certification, RoHS compliance can also be provided.