ISSN:
0142-2421
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Physics
Notes:
Iron oxide films with known 18O and 16O content were prepared by thermal oxidation of iron metal in H218O/H216O gas mixtures at 400°C. The oxide films were analysed in four laboratories with SIMS within a month after they were produced. One oxide sample (with 91% 18O) was also analysed after storage in air for 15 months. It turns out that the oxides are stable over that time period. The yield ratios of the detected ionic species based on negative 18O and 16O ions and metal-oxygen-containing ions were compared with the nominal, known values. The effect of interference of residual 16O and 16OH on the results is discussed and appropriate measures for reducing this effect are proposed. Reasonably good agreement is found between the four laboratories.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/sia.740211110
