Formothion, 100 µg/ml, Ethyl acetate, 1ml

2,3',4,5,5'-Pentachloro-4'-methoxy[13C12]biphenyl, 1.2ml x 50ug/ml, toluene

Tebufenozide-d9 (3,5-dimethylbenzoyl-d9),100 µg/mL,acetonitrile,1mL,

Chloridazon, 250mg