The separation of morphine from codeine by means of ion exchange.
D003061:Codeine; D006801:Humans; D007474:Ion Exchange; D009020:Morphine; D012116:Resins, Plant; D012117:Resins, Synthetic
D012116:Resins, Plant; D012117:Resins, Synthetic; D009020:Morphine; D003061:Codeine
CODEINE; MORPHINE; RESINS