HPLC Vials glass bottle: also known as sampling bottle and sampling glass bottle. Made of high quality borosilicate glass, the material is high quality, high hardness, high transparency! Capacity: 2ml, 3ml. 4ml, 5ml, 7ml, 10ml, 12ml, 15ml, 20ml, 30ml, 40ml, 50ml, 60ml, etc. It is suitable for the preservation of laboratory samples with good