Alumina Tapered Injector with 1.2mm ID. 1.2mm ID tapered quartz injector (N0781015). This alumina injector is for use with Optima 8x00 ICP-OES series instruments. The most versatile and suitable for use with aqueous, including HF, and organic solvent-based matrices. Optima 8x00 Series Injectors - Compatible with 50-190-7027 (30-808-3300), 50-190-7193 (31-808-3254), 50-190-7194 (31-808-3255), 50-190-7195 (31-808-3256), 50-211-2265 (N0780132), 50-211-2268 (N0780133), 50-211-2814 (N0780119).Glass Expansion is ISO 9001:2015 certified by AB Certification, No. AU4501-9001