Abstract

The method described herein employs low-current de-arc excitation, short exposure times, and a selected portion of the analytical gap to analyze small amounts (0.33–1.0 mg) of carbonate samples mixed with graphite for their strontium content. Repeatability of the method is 6%.

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

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

Spectrochemical Determination of Silicon, Iron, and Aluminum in Mineral Powders with a High Voltage Direct Current Arc*1

Howard I. Oshry, James W. Ballard, and H. H. Schrenk
J. Opt. Soc. Am. 32(11) 672-680 (1942)

The Measurement of Spectral Intensities in the Direct Current Arc*

Robert R. Hampton and H. N. Campbell
J. Opt. Soc. Am. 34(1) 12-20 (1944)

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)

The Effects of Argon and Argon-Helium Mixtures on the Direct Current Arc*†

Bert L. Vallee and S. James Adelstein
J. Opt. Soc. Am. 42(5) 295-299 (1952)