At the Armco Steel Corporation, over a period of several years, a number of spectrochemical methods have been developed which utilize briquetted powders, drillings, millings, nibblings, and grindings. The paper describes briquetted sample techniques for the routine analysis of steel, zinc, and zinc base alloys. Low and plain carbon steels are analyzed quantitatively for such elements as tin, lead, manganese, nickel, chromium, molybdenum, cobalt, titanium, aluminum, zinc, and boron. Zinc and zinc base alloys are analyzed quantitatively for cadmium, iron, lead, tin, antimony, and aluminum. Operational details, such as sample holders, spectrum lines utilized, source-units and source-unit constants employed, and precision and accuracy data over a five-year period are discussed.
J. F. WOODRUFF, "The Use of Briquetted Samples in the Spectrochemical Analysis of Carbon and Alloy Steels and Other Metals," J. Opt. Soc. Am. 40, 192-195 (1950)