The chemical preparation and characterization of specimens for "absolute" measurements of the molar mass of an element, exemplified by silicon, for redeterminations of the Avogadro constant
- 1 January 1995
- journal article
- Published by IOP Publishing in Metrologia
- Vol. 32 (2) , 103-110
- https://doi.org/10.1088/0026-1394/32/2/005
Abstract
The chemical steps needed to prepare specimens for "absolute" atomic-weight [(mean) relative atomic mass] determinations are outlined and discussed in detail for the atomic weight of silicon, Ar (Si), as recently measured for a redetermination of the Avogadro constant. The estimated combined uncertainties arising from the chemical procedures in that Ar (Si) measurement are shown to be almost equal to those from the associated mass-spectrometric measurements.Keywords
This publication has 7 references indexed in Scilit:
- Letter to the Editor: New values for silicon reference materials, certified for isotope abundance ratiosJournal of Research of the National Institute of Standards and Technology, 2012
- A more accurate value for the Avogadro constantIEEE Transactions on Instrumentation and Measurement, 1995
- Reference materials by isotope ratio mass spectrometryMass Spectrometry Reviews, 1993
- The isotopic composition and atomic weight of titaniumInternational Journal of Mass Spectrometry and Ion Processes, 1993
- Absolute isotopic abundance ratios and atomic weight of a reference sample of nickelJournal of Research of the National Institute of Standards and Technology, 1989
- Element by element review of their atomic weightsPublished by Walter de Gruyter GmbH ,1984
- A Redetermination of the Relative Abundances of the Isotopes of Carbon, Nitrogen, Oxygen, Argon, and PotassiumPhysical Review B, 1950