2ml Screw Thread HPLC Glass Vial--Aijiren Vials for. High quality Aijiren 9mm 2ml Screw vial for chromatography analysis, amber glass makes it compatible with sunscreen samples. The 0.3 ml clear glass micro-insert can be fixed in a 9mm 2ml HPLC Screw Vial, and the size of the inserted vial is 6*29mm. Chat Now.