Ioxynil-octanoate, 100 µg/ml, Ethyl acetate, 1ml

2,2',3,3',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

2-Methoxy-1-propyl acetate

Boscalid, 100µg/ml in MeOH, 1ml