Ammonium (NH4+) Back Catalog number: 54256 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 35071 EPA Method 502.2/524.2 - Liquids Price on request S-4516-2-50PE ISO 9377-2MOD Extraction solvent standard solution Dilute of "extraction solvent stock solution" (S-4415) 10 times with the extracting solvent (n-pentane) 1,5,10x50mL Use 50mL of extraction solvent standard solution pr. experiment Price on request BDE-209S Decabromodiphenyl ether, 50µg/ml in IO,1ml Price on request