EPA method 200.7 spiking no. 3

Dimethomorph, 100 µg/ml, Acetonitrile, 5ml

2,3,4,5-Tetrachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Difenoconazole, 10 µg/ml, Ethyl acetate, 10ml