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The Spectrographic Determination of Potassium in Coal Ash

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Indium, which is relatively absent in coal, is described as the ideal internal standard for the determination of potassium in coal ash. The chemical composition of the coal ashes examined varied over considerable limits. The standard deviation was slightly less than % 6±. Indium is also suggested as a possible ideal internal standard for sodium determinations.

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370258774615320

Affiliations: Baltimore Gas & Electric Co., Research Dept., Baltimore 3, Maryland

Publication date: October 1, 1958

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