Aijiren Technology 2ml vials septa cap for screw vials-Aijiren HPLC Vials. Aijiren Technology hplc vial caps in clear for HPLC sampling manufacturer Vials Cap Septa for GC HPLC Our product range includes a wide range of hplc solvent inlet filter, inlet filters, debubbler, 2ml amber sample screw vials, 250ul conical micro-insert, vial micro-insert and 1.5ml clear screw neck vial w/write-on spot.