Ammonia as (NH4+) Back Catalog number: 54112 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 54101 Chloride (Cl-), 1000µg/mL in Water, 100ml Price on request 5190-9409 PE CLP Calib Sol 1 in HNO3 125ml 412,66 € 309,49 € 54501 Chloride (Cl-), 1000µg/mL in Water, 500ml Price on request