PTFE Silicone septa are used for sample vials. They are made from a blend of polytetrafluoroethylene (PTFE) and silicone, providing excellent chemical stability and corrosion resistance. Their primary purpose is to serve as sealing liners for sample vials, preventing sample leakage or contamination from the environment. Common specifications include diameters of 10mm, 20mm, or larger, to fit various sizes of sample vial openings.
This material's properties enable it to withstand exposure to various corrosive reagents such as acids and bases in chemical laboratories, protecting samples from contamination or damage.
PTFE silicone septa: It has extremely low surface energy, is not easy to adhere to chemicals, and is resistant to high temperatures. It is suitable for experiments with high requirements on chemical reactants.
Polyethylene pads: Usually used for disposable laboratory supplies, they are cheap and suitable for one-time use or short-term experiments.
The choice of these substrate materials depends on the characteristics of the sample and the specific requirements of the experiment, such as temperature, chemical properties, and whether light protection is required.
How to choose correct HPLC sample vial septa
1) The PTFE membrane needs to be thin, with a thickness of 0.07-1.0mm as the appropriate size.
2) The silica gel should be selected to be high temperature resistant and highly elastic to prevent the liquid in the sample bottle from evaporating after use.
3) Choose different colors of PTFE membrane and silica gel to distinguish different uses
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Factroy Information
Rufluor has 10 clean production lines for PTFE silicone composite gaskets, as well as a gasket and cover composite production line and a cover and gasket assembly production line. Provide customers with a complete product series, including Sample vials from 1ML to 2000ML, cap pads from 4mm to 55mm in diameter, and a full range of syringe filters.
It has been OEMed for many well-known scientific instrument companies at home and abroad. They come from pharmaceutical, life science, chemistry, technology, food processing and other industries. At the same time, we also have customers from universities, research institutes, government agencies, and environmental testing agencies, etc. The quality is trustworthy.
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