title: Identification of impurities in illicit methamphetamine samples.
mesh_terms: D001593:Benzyl Compounds / Q000032:analysis; D002849:Chromatography, Gas; D004340:Drug Contamination; D004335:Drug and Narcotic Control; D005561:Formates / Q000032:analysis; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008694:Methamphetamine / Q000031:analogs & derivatives* / Q000032:analysis* / Q000138:chemical synthesis / Q000302:isolation & purification; D008722:Methods; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013057:Spectrum Analysis; D014481:United States
chemical_list: D001593:Benzyl Compounds; D005561:Formates; D008694:Methamphetamine