Liquid Chromatography | HPLC Systems | KNAUER. Analytical vial kit consisting of: 100x Vials: Screw neck vials N9 (ø 11.6 mm), 1.5 ml, amber glass, flat bottom, wide opening, with label & scale. 100x Caps: Screw caps blue with septum silicone beige/PTFE white . Certified amber glass vials with caps supplier for HPLC and GC