Gas chromatography of barbiturates, phenolic alkaloids, and xanthine bases: flash-heater methylation by means of trimethylanilinium hydroxide.
D000470:Alkaloids / Q000032:analysis*; D000814:Aniline Compounds; D001463:Barbiturates / Q000032:analysis*; D002849:Chromatography, Gas; D008722:Methods; D000644:Quaternary Ammonium Compounds; D014970:Xanthines / Q000032:analysis*
D000470:Alkaloids; D000814:Aniline Compounds; D001463:Barbiturates; D000644:Quaternary Ammonium Compounds; D014970:Xanthines