2,4'-DDD, 10.0 µg/ml, Ethyl acetate, 10ml

Aqueous Ethanol Standard (0.8g/l), 10 x 1,2ml

Decachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

4-Methoxy-3,5-dichlorobiphenyl,100µg/ml in IO, 1ml