Abstract

Eighteen elements are determined in beryllium from 5 to 1000 ppm by a dc-arc method. Samples are dissolved in hydrochloric acid, converted thermally to beryllium oxide, then mixed with graphite and barium carbonate for determining calcium, mixed with cupric oxide for determining boron and molybdenum, and mixed with graphite and germanium oxide for determining the other 15 elements. Spectral transmittances of analytical and internal standard lines are converted to relative-intensity ratios which are plotted against concentrations of standards to from curves from which concentrations of impurities are read.

Spectrochemical Analysis of Ceramics and Other Non-Metallic Materials*

Edwin K. Jaycox
J. Opt. Soc. Am. 37(3) 162-165 (1947)

The Quantitative Spectrochemical Determination of Barium, Strontium, and Calcium*

Werner Hartmann and Betty E. Prescott
J. Opt. Soc. Am. 38(6) 539-541 (1948)

The Spectrochemical Analysis of Copper Base Alloys*

Edwin K. Jaycox
J. Opt. Soc. Am. 35(2) 175-179 (1945)

A Method of Spectrographic Analysis of Impurities in Materials for Oxide Coating of Thermionic Cathodes*

T. J. Organ and S. L. Parsons
J. Opt. Soc. Am. 38(2) 191-195 (1948)

The Quantitative Spectrographic Analysis of the Rare Earth Elements*I. Determination of Samarium in NeodymiumII. Determination of Europium in Samarium

Velmer A. Fassel and Harley A. Wilhelm
J. Opt. Soc. Am. 38(6) 518-526 (1948)