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

Ethanol standard in whole blood,2.0g/L,whole blood, 1.5mL

4.4'-DDE (13C12), 100µg/ml in n-Nonane, 1,2ml

2,2',3,6-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,