The new algorithm of quantitative analysis in M'ossbauer spectroscopy

The main problem of the quantitative analysis is connected with the need to take into account in the theoretical model of interaction of Mössbauer radiation with matter both fundamental and empirical parameters reflecting the characteristics of the sample under investigation. Nowadays for quantitative analysis of locally inhomogeneous systems in Mössbauer spectroscopy an approach based on the experimental determination of the parameters in the equation which connect the concentration of the element with intensity of analytical signal is used. For this purpose, the analysis of the form of the experimental spectrum which described by transmission integral is performed, from which the basic parameters affecting the results of the experiment is derived. In this paper, we propose a new approach of quantitative analysis. This approach is based on the technique of determining the main parameters, affecting on results of a quantitative analysis. It consists in plotting the calibration curve on the basis of experimental data for the analytical signal depending on the concentration of resonant atoms using readily available reference samples, which may differ in composition from the samples to be analyzed. The algorithm for quantitative analysis was tested in the study of the real sample - iron containing mineral. It was shown that the proposed approach using a calibration curve is less labor-intensive in terms of experimental and more accurate than the previously proposed method without using reference samples.