The vial neck designed by Aijiren 8mm hplc vial is handled properly to facilitate the handling of the manipulator. Strict quality guarantees the consistency of size between batches. The well-proportioned flat bottom ensures matching with the internal cannula, and the ceramic writing position is convenient for marking. 11.6*32mm, vial mouth diameter 9mm, red PTFE/white silicone vial gasket, blue perforated polypropylene (PP) vial cap, sample vial is transparent, brown, and can be marked with graduations. They are suitable for various types of autosamplers, such as Aijiren, Waters, Varian and Shimadzu.