A Mathematical Method of Comparing Spectrochemical Results

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A mathematical method is described for comparing spectrochemical results, by calculating and comparing the areas of the contour ellipses which surround the points of density scatter diagrams. By employing this comparison method, it was found that, when using lithium carbonate as a buffer for plant ash analysis, the best results are obtained when the arc is burned with a surrounding air stream, as first suggested by Stallwood, but with a constant current generator used as the energy source.

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370258774615582

Affiliations: National Physical Research Laboratory, Council for Scientific and Industrial Research, Pretoria, Union of South Africa

Publication date: May 1, 1958

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