The Advantage of Aijiren 2ml Hplc Autosampler Vials Aijiren provide HPLC sample vials and caps. These are glasses, available in 2ml size, amber or clear glasses, with various caps-screws, curling, snaps or any color you want. We offer various autosampler vials compatible with Aijiren, Shimadzu, Waters, PerkinElmer, Thermo and Varian autosamplers.