Butachlor ESA sodium salt, 100µg/ml in MeOH, 1ml

2-Perfluorobutyl-[1,1,2,2-2H4]-ethanol (4:2), 50µg/ml in MeOH, 1,2ml

Internal Standard ICP-MS (200.8)

Methyl 2,3-dibromopropionate