Comparison of the intensity correction method and the analytical value correction method in the correction of interfering spectrum overlap

Abstract

In the x-ray fluorescence analysis of steels, a correction method is usually used so as to eliminate interfering spectrum overlap and absorption-enhancement effects. In correcting the former, the intensity correction method, by which measured x-ray intensity is corrected, is widely used. In the JIS method of x-ray fluorescence analysis of steels, however, the measured x-ray intensity is first converted into a tentative analytical value, and this value is then corrected for absorption-enhancement effects and finally for interfering spectrum overlap. In this report, a detailed comparison of both methods is made, and the characteristics of the JIS method are discussed.

Ferrous analysis

“…A recent Czechoslovakian paper counsels on the proper choice of X-ray instrumentation for monitoring file chemical composition of gray and alloy cast iron (66), pointing out some of the less expensive instrumental options. The treatment of data and methods of interference correction are described as applied to a glass disk XRF method for the analysis of Fe ore concentrates (565), to the analysis of steels (99), and, in a more general way, in the use of the Japanese Industrial Standards method for the correction of X-ray fluorescence measurements obtained in the analysis of steels (196,197). dimethylamine in the presence of Tween-80 has been proposed for the spectrophotometric analysis of iron ores at the trace level (132).…”