Analysis of morphine and related analgesics by gas phase methods.
D000701:Analgesics, Opioid / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas / Q000379:methods; D003201:Computers; D013058:Mass Spectrometry / Q000379:methods; D009020:Morphine / Q000032:analysis*; D009022:Morphine Derivatives / Q000032:analysis
D000701:Analgesics, Opioid; D009022:Morphine Derivatives; D009020:Morphine