Individual Calibration Solutions, 500ul, nonane

1,2,5,6-Tetramethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2131-43-3

1,2,3,8,9-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

4,4’-DDT