Abstract

A method is described in which Ag, As, Au, Bi, Cd, Ge, In, Mo, Pb, Sb, Sn, and Tl are simultaneously determined in a variety of metallurgical materials. Preconcentration and separation are achieved by coprecipitation with copper as mixed sulphides, and excitation is by means of the dc arc. Provision is made for the analysis of a wide variety of materials using a single set of synthetic standards.

Spectrochemical Determination of Trace Metals in Biological Material*

Jacob Cholak and Robert V. Story
J. Opt. Soc. Am. 31(12) 730-738 (1941)

A Spectrochemical Method for the Determination of Boron in Synthetic Mixtures of Soil Materials

R. Q. Parks
J. Opt. Soc. Am. 32(4) 233-237 (1942)

Spectrographic Determination of Trace Elements in 70/30 Brass and Admiralty Brass. Part I*

P. A. Leichtle
J. Opt. Soc. Am. 34(8) 454-463 (1944)

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)

Spectrochemical Analysis of Ceramics and Other Non-Metallic Materials*

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