title: Application of gas chromatography in manned space flight.
mesh_terms: D002849:Chromatography, Gas / Q000295:instrumentation*; D018504:Ecological Systems, Closed; D004581:Electronics; D005118:Extraterrestrial Environment; D005740:Gases / Q000032:analysis*; D006371:Helium; D006801:Humans; D013026:Space Flight
chemical_list: D005740:Gases; D006371:Helium