Atrazin, 100μg/ml in Acetonitrile, 5ml

1,2,3,4,7-Pentachlordibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropanecarboxylic Acid, 98%, 1g

2,2,4,5,5-Pentachlorobiphenyl, BZ-101