title: MASS SPECTROMETRY OF THE MORPHINE ALKALOIDS.
mesh_terms: D000470:Alkaloids; D055598:Chemical Phenomena; D002626:Chemistry, Pharmaceutical; D002627:Chemistry, Physical; D013058:Mass Spectrometry; D009020:Morphine; D012106:Research; D013057:Spectrum Analysis
chemical_list: D000470:Alkaloids; D009020:Morphine
keywords: CHEMISTRY, PHARMACEUTICAL; CHEMISTRY, PHYSICAL; EXPERIMENTAL LAB STUDY; MORPHINE; SPECTRUM ANALYSIS