Ammonia as (NH4+) Back Catalog number: 50630 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681875 Trinexapac, 100 µg/ml, Acetonitrile, 1ml Price on request 677598 1,4-Dimethylnaphthalene, 10 µg/ml, Cyclohexane, Price on request 0262.20-200-T Benzo[a]fluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 203-33-8 Price on request