alpha-HCH, 100 µg/ml, Ethyl acetate, 5ml

1,2,3,4,6,8,9-Heptachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

d18-b-1,2,5,6,9,10-Hexabromocyclododecane, 50µg/ml in Toluene, 1,2ml

0.100 N Potassium Thiocyanate