Ammonia as (NH4+) Back Catalog number: 54112 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 5190-8256 Aluminum, 1000ug/ml, 100ml 753,46 Kč 5190-9407 PE Alt trace metals II in 2 HNO3, 100ml 10 572,06 Kč 54101 Chloride (Cl-), 1000µg/mL in Water, 100ml Price on request