Tiếng Việt
1) Description
Our Black 9-425 Open Top Ribbed Screw Closures are high quality closures designed for laboratory and scientific research needs. These closures are equipped with double/three-layer septa in a variety of materials to accommodate different experimental conditions and chemicals. Its unique open-top design allows direct penetration with a needle for easy sample addition or extraction, while the threaded design ensures the sealing and safety of the vial mouth. The versatility and high-quality material selection of these closures make them an indispensable accessory in laboratory and scientific work, providing reliable sealing and protection solutions whether performing sample analysis, chemical reactions or substance storage.
2) 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.
3)Features
▶ High-quality Materials: Use chemically resistant PTFE and flexible silicone materials to ensure compatibility with various chemical substances and prevent sample contamination.
▶ Excellent Sealing Performance: The black 9-425 open top closures, with ribbed design, provide extra grip to ensure the lid is easy to tighten and open while maintaining an excellent seal.
▶ Double/Three-layer Septa Design: The PTFE and silicone Septa combine the chemical stability of PTFE with the excellent sealing and elasticity of silicone to provide double protection for the sample.
▶ Easy to Identify: The design of black caps and septa in various color combinations facilitates laboratory management and quick identification, improving work efficiency.
▶ Wide Compatibility: suitable for most 9-425 screw-top vials to meet the needs of different laboratory applications.
