Ammonia as (NH4+) Back Catalog number: 54112 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended VHG-CLOIL-1P-100 Chlorine, 10000µg/g (1.00wt%) in Mineral Oil,100ml Price on request ICP-AM-15-1M-100 ICP Mix 15, 1000µg/mL in 2% HNO3, 100ml Price on request 5190-8309 Silver (Ag) standard, 1000µg/mL, in 5% HNO3, 100ml 28,52 €