Trichloroethene, 100 µg/ml, Methanol, 5ml

17b-Estradiol-2,4,16,16,17-d5, 100µg/ml in Acetonitrile, 5ml

n-Undecanaldehyde-DNPH, 100µg/ml in Acetonitrile, 5ml

2,3,7,8-Tetrachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene