Sample Vials. Description. 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. Min Order Quantity: 20 packs (100 pcs/pack)