title: [Use of the stable isotopes in life science (XV). The accurate determination of 15N with an emission spectrometer].
mesh_terms: D000643:Ammonium Chloride / Q000032:analysis; D005740:Gases; D009584:Nitrogen / Q000032:analysis; D009587:Nitrogen Isotopes / Q000032:analysis*; D009589:Nitrogen Oxides / Q000032:analysis; D013057:Spectrum Analysis / Q000379:methods*
chemical_list: D005740:Gases; D009587:Nitrogen Isotopes; D009589:Nitrogen Oxides; D000643:Ammonium Chloride; D009584:Nitrogen