2ml Clear HPLC Vials with Cap Manufacturer Mar 26, 2021 · For many users of 2ml Clear HPLC Vials with Caps, the vial is nothing more than a temporary container to hold a sample until it can be analyzed by gas chromatography (GC) or liquid chromatography (LC). 2ml Clear HPLC Vials with Caps are the most using at the analysis of HPLC. 1.Caps and Septa Packing : Self-sealing foil PE bag. 100pcs