Use of stable isotope mixtures as a labeling technique in drug metabolism studies.
D000818:Animals; D002849:Chromatography, Gas; D003903:Deuterium; D007553:Isotope Labeling; D013058:Mass Spectrometry; D008722:Methods; D009661:Nortriptyline / Q000378:metabolism* / Q000652:urine; D051381:Rats; D013237:Stereoisomerism
D003903:Deuterium; D009661:Nortriptyline