Ammonium (NH4+)

Dodine, 100 µg/ml, Acetonitrile, 5ml

2,3,3',4,4',5,5'-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Norethindrone-2,2,4,6,6,10-d6, 2,5mg