Features: 2ml sample vial are made of high quality borosilicic acid glass,low content of free ions,low coefficient of expansion and very high chemical resistance.It is suitable for containing all Autosampler Vial 2ml with Caps, HPLC Vial,9-425 Amber Vial with Blue Screw Caps,Writing Patch,Graduation,White PTFE & Red Silicone Septa Fit for LC Sampler(200 pcs,Brown) B081YC7KQW