O-Methylcodeine, 10mg

Iopamidol-d8, 1mg

Ethyl eicosanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 18281-05-5

3-tert-Butylphenyl diphenyl phosphate, 1.2ml x 50ug/ml, toluene