Ammonia as (NH4+) Back Catalog number: 54112 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended VHG-INO2-100 Nitrite Standard: NO2-, 1000µg/mL iin Water, 100ml Price on request VHG-PMNN-100 Mn, 1000 µg/mL in 5% HNO3, 100ml Price on request 5190-9766 ICH/USP Target Elements Standard A 146,76 €