Metazachlor, 100 µg/ml, Acetonitrile, 5ml

Benz[a]anthracene, 1000 µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 56-55-3

Potassium (K), 1000µg/ml in 2%-HNO3/Water, 100ml

ICP-MS Mix