Determination of radioactive-labeled codeine, morphine, dihydromorphine, and their metabolites in biological materials.
D002247:Carbon Isotopes; D003061:Codeine / Q000032:analysis* / Q000378:metabolism; D008722:Methods; D009019:Morphinans / Q000032:analysis* / Q000378:metabolism; D009020:Morphine / Q000032:analysis* / Q000378:metabolism
D002247:Carbon Isotopes; D009019:Morphinans; D009020:Morphine; D003061:Codeine