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J Res Natl Bur Stand A Phys Chem. 1966 Mar-Apr;70(2):193-197. doi: 10.6028/jres.070A.016.

Absolute Isotopic Abundance Ratios and the Atomic Weight of a Reference Sample of Chromium.

Journal of research of the National Bureau of Standards. Section A, Physics and chemistry

William R Shields, Thomas J Murphy, Edward J Catanzaro, Ernest L Garner

Affiliations

  1. Institute for Materials Research, National Bureau of Standards, Washington, D.C.

PMID: 31823989 PMCID: PMC6640562 DOI: 10.6028/jres.070A.016

Abstract

Absolute values have been obtained for the isotopic abundance ratios of a reference sample of chromium, using surface emission mass spectrometry. Samples of known isotopic composition, prepared from nearly pure separated chromium isotopes, were used to calibrate the mass spectrometers. The resulting absolute values are Cr

Keywords: Chromium. atomic weight; absolute ratios; isotopic abundances

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