Influence of sample composition on the results of semi-quantitative spectral analysis of copper, arsenic, lead and antimony in rocks
Abstract
Methods of spectral analysis are widely used in the practice of geological exploration. Of great importance for the needs of geology are those methods that are based on simple and accessible techniques of spectral analysis, provide good performance, the possibility of determining a large number of chemical elements on the spectrum of the sample and give a quantitative characterization of the elements determined. Such a method is currently the method of full spectral analysis, when the sample is introduced into an electric arc and for quantitative assessment is used attenuation of the intensity of spectral lines by three orders of magnitude. The content is determined by plotting the number of analytical line steps against the concentration of the element in the samples. However, the process of evaporation and excitation of a particular element depends on the composition of the sample being analyzed. Therefore, the intensity of lines at the same concentration of the element can be different in samples of different composition.
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