title: Analysis of small discrete samples of gas with a respiratory mass spectrometer.
mesh_terms: D006221:Halothane / Q000032:analysis*; D013058:Mass Spectrometry / Q000379:methods; D009609:Nitrous Oxide / Q000032:analysis*; D012119:Respiration
chemical_list: D009609:Nitrous Oxide; D006221:Halothane