2,2',3,3',4,5',6,6'-Octachlorobiphenyl (201)

2,4,6,8-Tetrachloro[13C12]dibenzothiophene, 1.2ml x 50ug/ml, toluene

Picaridin, 100 µg/ml, Acetonitrile, 1ml

Heptachlor epoxide (isomer B), 1000µg/ml in MeOH, 1ml