Metribuzin, 100 µg/ml, Acetonitrile, 5ml

Eplerenone, 5mg

α-1,2,5,6,9,10-Hexabromo[13C12]cyclododecane, 1.2ml x 50ug/ml, toluene

Metolachlor ethyl sulphonic acid sodium salt, 100µg/ml in MeOH, 1ml