Jun. 14th, 2020. Aijiren has been involved in the design and manufacture of Vials, Caps and Seals for Chromatography, we successfully developed various types of Autosampler vials specially used in HPLC, UPLC, GC and Headspace Chromatography. 2ml 9mm Amber Hplc Vials are made of low extractable Borosilicate glass.