title: Analysis of urine for parts-per-trillion levels of aromatic diamines with capillary gas chromatography and selected-ion monitoring mass spectrometry.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D003959:Diamines / Q000652:urine*; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods; D008832:Microchemistry
chemical_list: D003959:Diamines