title: [Solution of inverse problem of therman equation in quantitative X-ray fluorescence analysis. Theoretical effect coefficient method and fundamental parameter method].
abstract: In this paper, firstly the algorithmic relation between the weight fraction Ci, X-ray fluorescence relative intensity Ri and matrix effect factor Fi 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.
authors.affiliation: Department of Chemistry, Beijing University of Science and Technology, 100083 Beijing.
authors.forename: B
authors.initials: B
authors.lastname: Tan
authors.forename: G
authors.initials: G
authors.lastname: Wang