Dimefox, 100 µg/ml, Acetonitrile, 5ml

1,1-Dichloro-2,2-bis[4-chloro(13C6)phenyl]ethane, 1.2mL x 100ug/mL, nonane

PCB No. 78, 100µg/ml in Isooctane, 1ml

Thionazin, 100 µg/ml, Acetonitrile, 1ml