Standardless EDXRF Analysis Methods of U and Th in Malaysian Tin Slag Waste

Abstract:

Accurate quantification of uranium and thorium elements was performed in the absence of standards for the XRF analysis. This quantification method uses standard addition method. The standard addition method was first established by performing a micofocus XRF onto a sample. In the calibration graphs of uranium, the R² was 0.9997 white the R² value for thorium was 0.9915. Once the baseline quantity of both uranium and thorium were obtained, they were used to normalize all the quantification of other samples prepared by grab and vibratory methods. It was found out that the vibratory method gives more accurate results.

• Periodical: Materials Science Forum (Volume 840)
• Pages: 410-415
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.840.410
• Online since: January 2016
• Authors: Meor Yusoff Meor Sulaiman*, Nursaidatul Syafadillah Kamaruzaman, Ahmad Khairulikram Zahari
• Keywords: EDXRF, Grab Method, Thorium, Tin Slag, Uranium, Vibratory Feeder Method

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