Certified 250ul chromatography vial inserts 8-425 HPLC vials Waters 8-425 Chromatography Autosampler Vials - Buy 8-425 2ml, 11.6*32mm, 8-425 Chromatography Autosampler, screw top ,clear glass or amber glass, with marking spot or without marking spot, PP Screw top caps, PTFE/silicone septa, 100pcspk.Compatible with Aijiren,Perkin Elmer,Shimadzu