white graduation line autosampler sample vials prepare-HPLC . Dec 22, 2021 · Autosampler Vials 2ml with Caps, HPLC Vial,9-425 Clear Vial with 22 12 2021 Color: BrownFeatures: 2ml sample vial are made of high quality Patch,Graduation,White PTFE & Red Silicone Septa Fit for GC Sample Vial (500PCS, Brown).