Heptachlor-exo-epoxide, 10 µg/ml, Cyclohexane, 1

Fenpropidin, 100µg/ml in MeOH, 1ml

1,4-Dichlorobenzene, 100 µg/ml, Methanol, 5ml

Mass-Labelled PCB Solution/Mixture , 1.2ml, nonane