Hexavalent Chromium (Cr 6+)

1,2,3,4,6,7,8-Heptabromodibenzo-p-dioxin, 1.2ml x 25ug/ml, toluene

Ochratoxin B, 5mg

1,2,7,8-Tetrachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene