Abstract

A method is designed to provide for the spectrochemical analysis of iron ore for the following elements, reported as oxides in the ranges indicated: SiO₂, 4.0-20.0%, and Al₂O₃, CaO, MgO, 1.0-6.0% each The solution and rotating disk technique is applied to a sample which has been treated to yield a dilute hydrochloric acid solution containing all of the four elements to be determined. A solution containing titanium and zinc for internal standard use is added. The spectrograms resulting from a high voltage excitation of these sample solutions have given analytical results with an average precision of 3.0% expressed as the coefficient of variation.

Acidity measurement of iron ore powders using laser-induced breakdown spectroscopy with partial least squares regression

Z.Q. Hao, C.M. Li, M. Shen, X.Y. Yang, K.H. Li, L.B. Guo, X.Y. Li, Y.F. Lu, and X.Y. Zeng
Opt. Express 23(6) 7795-7801 (2015)

Spectrochemical Analysis by the Copper Spark Method*

Mark Fred, Norman H. Nachtrieb, and Frank S. Tomkins
J. Opt. Soc. Am. 37(4) 279-287 (1947)

Spectrochemical Analysis of Solutions Using Spark Excitation*†

Henry A. Sloviter and Alexander Sitkin
J. Opt. Soc. Am. 34(7) 400-404 (1944)

The Spectrochemical Analysis of Nickel Alloys*

Edwin K. Jaycox
J. Opt. Soc. Am. 37(3) 159-162 (1947)

Spectrochemical Analysis of Ceramics and Other Non-Metallic Materials*

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