Dialifos, 100 µg/ml, Ethyl acetate, 1ml

1,3,7,8-Tetrachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

2,4,4'-Trichlorobiphenyl ether,50 µg/mL,n-nonane,1mL,

PAH-Mix 9 deuterated, 10 ng/µl, 10ml