Ammonia as (NH4+)

2,2',3,3',4,4',5,5',6-Nonabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, toluene

Thiobencarb, 100 µg/ml, Ethyl acetate, 5ml

Triflumuron, 100 µg/ml, Acetonitrile, 5ml