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A method is described for the spectrochemical analysis of super pure chromium for six impurity elements. The chromium is removed by volatilisation as chromyl chloride and the impurities collected on a calcium sulphate matrix. This is burned in a d.c. arc and the intensities of the impurity
lines are measured with reference to indium, which is added as an internal standard. Working curves are shown for the six elements, Mg, Pb, Fe, Al, Cu and Ag in the concentration range 0.005 - 0.0001 per cent. Results are given of a typical analysis and the standard deviations.
Australian Defence Scientific Service, Defence Standards Laboratories, Department of Supply, Maribyrnong, Victoria, Australia
Publication date: April 1, 1959
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The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)