Ammonia as (NH4+) Back Catalog number: 54112 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended E1243-100ML FE1243 Rhenium ICP 10g/L ,100LPF Price on request E3001-100ML FE3001 Ammonium for IC 1g/L ,100LPF Price on request E1072-100ML FE1072 Zirconium ICP 1g/L ,100LPF Price on request