Surrogate Standard Stock Solution, 1.2ml, nonane

2,3,4',6-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,

D8-2,4'-DDT, 100µg/ml in Acetone, 1ml

(Z)-Dimethylvinphos, 10 µg/ml, Cyclohexane, 10ml