Feb 3, 2023 · 2mL Autosampler Vial 100 Pack- HPLC Vial | 9-425 Amber Vial Jun 9, 2022 · 2ml sample vials are made of high-quality borosilicate glass, low content of free ions, low coefficient of expansion, and very high chemical resistance. It is suitable for containing all injectable preparations with acid, neutral and alkaline pH.