2,4'-DDT, 10.0 µg/ml, Cyclohexane, 10ml

1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

Terbufos-sulfoxide, 100 µg/ml, Toluene, 1ml

EPA Method 524.3 - Internal Standard