Ammonia as (NH4+)

EPA Method 531.1 - Analytes Mixture

4-Nonylphenol, mixture of isomers, Type B, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 84852-15-3

Di-n-octyltin dichloride, 1000µg/ml in MeChl, 1ml