2,4-DB, 10 µg/ml, Acetonitrile, 10ml

2,2',4,4',6,6'-Hexachloro-3,3'-dimethoxybiphenyl, 1.2ml x 50ug/ml, nonane

n-Butane

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