Alumina Tapered Injector with 2.4mm ID.2.4mm ID tapered alumina injector (50-190-7214, 31-808-3388). This alumina injector, with 2.4 mm I.D., is for use with Spectro (Ametek) EOP/SOP, Axial/Radial (Modula, CIROS, Genesis, ARCOS) ICP-OES, not for ARCOS II. The most versatile and suitable for use with aqueous, including HF, and organic solvent-based matrices.Spectro (Ametek) EOP/SOP, Axial/Radial (Modula, CIROS, Genesis, ARCOS) ICP-OES Injectors - Compatible with Glass Expansion Axial D-Torch 50-190-7029 (30-808-3371) and Radial D-Torch 50-190-7023 (30-808-2928). Optional Tapered Quartz Injectors are 1.8 mm 50-190-7168 (31-808-2974), 2.5 mm 50-190-7252 (31-808-3723) and 3.0mm 31-808-3724, Tapered Alumina Injectors 1.2mm 50-190-7191 (31-808-3238) and 1.8mm 50-190-7166 (31-808-2963). Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001