PCB 118, 10 µg/ml, Isooctane, 10ml

Dibenz[a,j]anthracene, 10µg/mL in Acetonitrile, 10ml

Vitamin D2, 250mg

3,4,4',5-Tetrachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane