Ammonium (NH4+) Back Catalog number: 54256 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92345 Surrogate Standard Price on request 10:2FTACR 1H,1H,2H,2H-Perfluorododecyl acrylate (97%), 1.2ml x 48.5ug/ml, isooctane Price on request 2162.12-50-IO 6-Fluoro-2,3',4,4'-tetrabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 87310-24-6 Price on request