1-4mL Autosampler Vials for HPLC, UPLC, GC. High quality hplc chromatography vials from Aijiren Tech,which is the leading supplier of hplc chromatography vials from China. Hplc Vials. Global supplier of HPLC&GC consumables. Our major products are chromatography autosampler vials with closures, inserts, crimper and syringe filters, etc;