Fipronil Desulfinyl, 25mg

2,4,5-Trichloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene

2,3,6-Trichlorobiphenylene, 1.2ml x 1x10-4M, dimethylsulfoxide

Atrazine-desisopropyl, 100µg/ml in AL, 5ml