Tiếng Việt
1) Description
13mm septa for 13-425 screw top vials are designed for use in a wide range of analytical and sampling applications, offering a blend of chemical resistance, thermal stability, and mechanical durability.
2) Features
▶ Chemical Compatibility: The combination of PTFE (Polytetrafluoroethylene) and Silicone provides excellent resistance to a wide range of chemicals, making these septa suitable for use with aggressive solvents and acidic or basic samples.
▶ Thermal Stability: These septa are designed to withstand high temperatures, maintaining their integrity and sealing capability in demanding thermal environments. This makes them suitable for high-temperature applications.
▶ Re-sealability: The silicone layer ensures that the septa can be pierced multiple times with a needle, while still maintaining a good seal. This is crucial for applications requiring multiple sample withdrawals or additions.
▶ Low Bleed: The high-quality materials used in these septa result in minimal bleed, making them suitable for sensitive analytical techniques such as GC-MS (Gas Chromatography-Mass Spectrometry) where septa bleed can interfere with the analysis.
▶ Dimensional Compatibility: The 13-425 thread specification indicates compatibility with vials having a 13mm diameter opening and a 425 thread pitch, ensuring a wide range of compatibility with standard laboratory vials.
▶ Ease of Use: These septa are designed for easy manual or automated handling, facilitating efficient workflow in the laboratory.
3) Application
HPLC and GC Autosampler Analysis
Open top caps are used where high-throughput sample analysis via an autosampler is required. This design allows the sampler needle of the autosampler to pass directly through the opening in the cap to extract the sample in the bottle without manually opening the vial cap, improving the efficiency and accuracy of analysis. For laboratories that conduct a large number of sample tests, the use of open top caps with automatic samplers can significantly improve the speed and repeatability of sample processing and reduce human errors during operation.
