title: Illicit heroin manufacturing byproducts: capillary gas chromatographic determination and structural elucidation of narcotine- and norlaudanosine-related compounds.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D004340:Drug Contamination; D003932:Heroin / Q000032:analysis*; D013287:Illicit Drugs / Q000032:analysis*; D009665:Noscapine / Q000032:analysis*; D010208:Papaverine / Q000031:analogs & derivatives*; D004364:Pharmaceutical Preparations / Q000032:analysis*; D013765:Tetrahydropapaveroline / Q000032:analysis*
chemical_list: D013287:Illicit Drugs; D004364:Pharmaceutical Preparations; D013765:Tetrahydropapaveroline; D003932:Heroin; D009665:Noscapine; D010208:Papaverine