title: A pyrolysis/gas chromatographic method for the determination of hydrogen in solid samples.
abstract: A method is described for the determination of hydrogen in solid samples.  The sample is heated under vacuum after which the evolved gases are separated by gas chromatography with a helium ionization detector.  The system is calibrated by injecting known amounts of hydrogen, as determined manometrically.  The method, which is rapid and reliable, was checked for a variety of lunar soils; the limit of detection is about 10 ng of hydrogen.
authors.affiliation: Experimental Planetology Division, NASA Johnson Space Center, Houston, TX 77058, USA.
authors.forename: R H
authors.initials: RH
authors.lastname: Carr
authors.forename: R
authors.initials: R
authors.lastname: Bustin
authors.forename: E K
authors.initials: EK
authors.lastname: Gibson
mesh_terms: D001256:Astronomy / Q000379:methods; D002138:Calibration; D002849:Chromatography, Gas / Q000379:methods*; D006371:Helium / Q000032:analysis; D006859:Hydrogen / Q000032:analysis*; D016081:Moon; D012987:Soil / Q000032:analysis*
chemical_list: D012987:Soil; D006371:Helium; D006859:Hydrogen