title: [FPMULTI--a software for multi-layer composition and thickness analysis and its applications].
abstract: Main features of FPMULTI, a software for analyzing composition and thickness of multi-layer samples simultaneously using XRF, are briefly described in this paper. Based on fundamental parameter method, the software has the capability of determining multi-layer samples containing up to 10 layers and 25 elements. Calibration standards can be bulk or multi-layer of pure element or multi-element standards. Application examples for tin-plates, hot dip galvanized zinc-plates and 'fingerprint-resistant' plates were given. FPMULTI is used to predict the relationship between intensities of different X-ray lines and the thickness first and then to analyze those samples. When using only few calibration standards, the results from FPMULTI are much better than those from linear regression method, and this reflects the advantages of the fundamental parameter approach.
authors.affiliation: Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050 Shanghai.
authors.forename: G
authors.initials: G
authors.lastname: Tao
authors.forename: A
authors.initials: A
authors.lastname: Ji
authors.forename: S
authors.initials: S
authors.lastname: Zhuo