Materials of common sample bottles

Chromatography vials are widely used in the chemical and medical fields. Autosampling vials are generally made of hydrolyzed glass or borosilicate and are generally available in sizes ranging from 1 mL to 60 mL, with different designs to meet different operational needs. The caps are available in solid and hollow colors, and the size of the spacer inside the cap varies with the size of the cap. The spacers are generally one, two, and three layers, each with a different or the same color, and the spacer material is generally composed of silicone or rubber and Teflon.