Ammonia as (NH4+) Back Catalog number: 54112 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 5190-8354 Antimony 10,000ug/ml, 100ml 96,95 € 5190-8303 Platinum, 1000ug/ml, 500ml 333,94 € 57424 Chromium (Cr), 1µg/ml in 2%-HNO3 / Water, 100ml Price on request