HPLC Autosampler Vials. Aijiren always specializes in the wholesale of chromatography consumables for 15+ years. HPLC Autosample Vials, Headspace Vials, Sample Storage Vial, EPA, TOC Vials, COD Tubes, Reagent Bottles, Syringe Filter, ETC. 2ml or 1.5ml hplc autosampler vials are available in a variety of neck finishes and opening diameters.