title: Confirmatory techniques: general aspects.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas / Q000379:methods; D007202:Indicators and Reagents; D008163:Luminescent Measurements; D008722:Methods; D009602:Nitrosamines / Q000032:analysis*; D009603:Nitroso Compounds / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D009602:Nitrosamines; D009603:Nitroso Compounds