网页Chromatography Vials, Pre-assembled R.A.M Convenience Pack, 12x32mm Large Opening Clear R.A.M. Vial, 9mm Neck Finish, Smooth Black Cap, PTFE/Silicone with Slit, with Graduation Spot, 1000/CS Chromatography Vials, Certified Amber Glass 9mm R.A.M.™ Vial, 12x32mm, and PP Open Top Cap, Royal Blue, Bonded PTFE/Silicone, 100/CS