预组装螺纹口样品瓶，带聚丙烯顶部开口瓶盖

Vials are suitable basically to inject samples from an autosampler. They are available in various sizes, although 2 mL vials are more commonly used. Autosampler needle pierces through the cap during injection and withdraws the required aliquots of sample from the vials. Amber glass vials (volume 7 mL) are useful in preventing the sensitive analyte under investigation from exposure to UV light. The threads on the standard vials are 15-425. The polypropylene cap is autoclavable and it can withstand the temperature up to 135° C. The PTFE/silicone septum is sized to fit screw top vials. It is suitable for use with most organics (until pierced) and is not recommended for use with chlorosilanes.