title: Validation of the sulphur concentration of selected iron-base NBS standard reference materials by isotope-dilution spark-source mass-spectrometry.
abstract: An isotope-dilution spark-source mass-spectrometric procedure has been developed for the accurate determination of sulphur in iron-base alloys. Dissolution in a sealed tube is used to prevent volatilization losses and to effect isotope equilibration. Application of this technique to the re-analysis of existing NBS Standard Reference Materials yields results that are generally in good agreement with the certified values.
authors.affiliation: National Bureau of Standards, National Measurement Laboratory, Center for Analytical Chemistry, Washington, DC 20234, U.S.A.
authors.forename: R W
authors.initials: RW
authors.lastname: Burke
authors.forename: P J
authors.initials: PJ
authors.lastname: Paulsen
authors.forename: E J
authors.initials: EJ
authors.lastname: Maienthal
authors.forename: G M
authors.initials: GM
authors.lastname: Lambert