PCB - Mix 8, 10µg/ml in Cyclohexane, 5ml

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

Paraquat dichloride, 100 µg/ml, Water, 1ml

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