Chlorobenzilate, , 1000µg/ml in Isooctane, 1ml

Ethanedial

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

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