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Quantitative Spectrochemical Methods of Broad Applicability

Volume 12, Number 3 (July 1958) Page 87-89

Jaycox, Edwin K.


One important factor restricting the applications of the emission spectrograph to the quantitative analysis of any and all kinds of materials has been the limited availability of suitable analyzed standard samples in some required areas of analysis. Techniques are described wherein available standard samples are used in combination with synthetic laboratory-made standards and spectroscopic buffers. These methods utilize a single set of three to six standards for the analysis of each class of alloys. For example, one set of standards is used for the analysis of lead-base, lead-tin-base (solders) and tin-base alloys; and in like manner a single set of standards for each of copper-base, aluminum-base, zinc-base, and magnesium-base alloys, and for ceramics.

The availability of standard samples, their usefulness, and their limitations are discussed. Data are presented to indicate the precision and accuracy of the methods as applied to various base materials.