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

Formothion, 100 µg/ml, Ethyl acetate, 1ml

2,2',3,4,4',5,5'-Heptachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Bromocyclen, 10.0 µg/ml, Isooctane, 10ml