2-Chloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene

1,4,5,6,7,7-Hexachlorobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid,50 µg/mL,toluene,1mL,

Trichlorofluoromethane

6-Nitrobenzo[a]pyrene, 10mg