Atrazine, 100µg/mL in Acetonitrile, 1ml

1,2,3,7,8-Pentachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

2,3,3',4,4'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Ethylisopropylnitrosamine, 25mg