Abstract

The procedure described is applicable to the quantitative spectrochemical analysis of ceramics, ashes, ores, paints, and other non-metallic materials for the determination of most of the common metals and their oxides. These include: aluminum, boron, barium, beryllium, calcium, copper, chromium, iron, lithium, magnesium, manganese, sodium, lead, silicon, titanium, zinc, and zirconium, in the general range of 0.30–70.0 percent. Samples in the form of a fine powder are mixed 1 part of sample to 10–100 parts of a suitable metal oxide which serves as a buffer, diluent, and internal control. Carbon dust is added to this mixture for its additional buffering effect. Spectra are obtained of the samples and of an appropriate series of standards. Determinations of the amount of element sought are made, in most cases by the well known internal standard technique, in others by the simple comparison standard procedure.

© 1947 Optical Society of America

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