Solution of inverse problem of therman equation in quantitative X-ray fluorescence analysis - Theoretical effect coefficint method and fundamental parameter method

In this paper,firstly the algorithmic relation between the weight fraction C-i ,X-ray fluorescence relative intensity R-i and matrix effect factor F-i is created for the multi-element specimen on theoretical basis. Secondly, according to this algorithm relation, the typical method to solve inverse problem of Therman equation can be developed that is the theoretical influence coefficience method and the fundamental parameter method. Six standards are analysed by these two methods respectively,and results are good agree with the certified values.