[Durable glass bottle] HPLC small bottle has heat resistance and high chemical resistance, suitable for reagents that accommodate acid, neutral and alkaline pH[Sealing Design] The small bottle of the laboratory adopts a unique screw design to that the seal is consistent. Silicone diaphragm and polytetrafluoroethylene provides evaporation and sealing for compound sample storage in the chemical industry and research laboratory[Easy to distinguish] bottle has a white scale of 0.5 ml increment, and there is a writing area for sample recognition or marking[Spiral Bottle] Our 2ml HPLC small bottle diameter is 12mm and the height is 32mm. It is suitable for ordinary automatic proofers[Extensive application] Laboratory small bottles are suitable for HPLC, , LC/MS applications and high -throughput analysis to obtain reliable results. Sample bottle can be used for automatic molding of all common fine -necked bottleColour:brownMaterial:GlassPackage Contents:100 x Autosampler VialOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.