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Abstract

Evidence of natural isotope fractionation of iron in some geological samples has been found recently using thermal ionisation mass spectrometric methods. These measurements were calibrated using a set of gravimetrically prepared isotope mixtures. The use of gas phase sample introduction into the mass spectrometer, as applied in the case of stable isotope work for other elements, is likely to improve the attainable measurement precision significantly. However, the number of volatile iron compounds is limited; the anhydrous iron II and III chlorides are only slightly volatile. The aim of this work was to assess whether it is possible to perform high precision isotope abundance ratio determinations on gaseous iron, using an electron impact ion source and magnetic sector mass spectrometer.

Additional information

Authors: TAYLOR P D P, JRC Geel (BE);VALKIERS S, JRC Geel (BE);DE BIEVRE P, JRC Geel (BE)
Bibliographic Reference: Paper presented: XXVIII Colloquium Spectroscopium Internationale, York (GB), June 29 - July 4, 1993
Availability: Text not available
Record Number: 199311590 / Last updated on: 1994-11-28
Category: PUBLICATION
Original language: en
Available languages: en