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Practical XRF Calibration Procedures for Major and Trace Elements
Author(s) -
Rousseau Richard M.,
Willis James P.,
Duncan Andrew R.
Publication year - 1996
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/(sici)1097-4539(199607)25:4<179::aid-xrs162>3.0.co;2-y
Subject(s) - trace (psycholinguistics) , calibration , computer science , environmental science , mathematics , philosophy , statistics , linguistics
Different calibration procedures for the determination of major and trace elements by XRF analysis are presented and discussed. Empirical calibration curves comparing intensities with concentrations can be used for the analysis of samples with limited variations of the matrix composition. However, a general‐purpose calibration procedure that is applicable to a larger variety of matrix types and covering wider ranges of the analyte concentration is usually more desirable. This paper presents practical and simple calibration procedures for the determination of major and trace elements that will allow one to adapt any mathematical model to any set of experimental data while producing the maximum of accuracy in the final results. It is also shown how to calculate from multi‐element standards a practical intensity of the pure analyte, thus eliminating the requirement for a pure analyte specimen.