title: The detection of 1-piperidinocyclohexanecarbonitrile contamination in illicit preparations of 1-(1-phenylcyclohexyl)piperidine and 1-[1-(2-thienyl)-cyclohexyl]piperidine.
mesh_terms: D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D004340:Drug Contamination; D009570:Nitriles / Q000032:analysis*; D010622:Phencyclidine / Q000031:analogs & derivatives* / Q000032:analysis*; D010880:Piperidines / Q000032:analysis*
chemical_list: D009570:Nitriles; D010880:Piperidines; C011993:1-piperidinocyclohexanecarbonitrile; D010622:Phencyclidine