Chloridazon-methyl-desphenyl, 10 ng/µl, 10ml

Ethylenethiourea, 1000µg/ml in Ethylacetate, 1ml

1,2,5,6,9,10-Hexabromocyclododecane, 100µg/ml in MeOH, 5ml

PAH standard, 100µg/ml in methylene chloride, 1ml