Ammonia as (NH4+) Back Catalog number: 54112 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 511-946 1000 ppmC standard KHP, 100ml Price on request 5190-9413 PE ICP-OES Calib Std, in HNO3, 500ml 377,92 € 5191-4553 ICH Q3D & USP 232 Orals Kit_v2 1 246,76 €