Systematic investigation of inter-element effects during EDXRF measurements on mixed oxide powders of aluminium, silicon, and yttrium
Publish place: Journal of Chemistry Letters، Vol: 4، Issue: 4
Publish Year: 1403
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JCHE-4-4_001
تاریخ نمایه سازی: 8 اسفند 1402
Abstract:
Inter-element effects may severely affect the accuracy during EDXRF measurements of mixed oxides. Single (individual), binary and ternary oxide mixtures of Al, Si and Y were made with cellulose and the pellets were prepared. Sensitivity and intercept of the EDXRF spectrometer for Al, Si and Y were determined. Effects of presence of the other elements on the sensitivity and intercept were studied. The sensitivity was found to increase, as per the atomic number. Characteristic X-ray energies, absorption edges and attenuation coefficients are the key factors, which controlled the sensitivity. Presence of interfering impurities, overlap of peaks and X-ray absorption, hold the principal control over intercept of the calibration curves. For each of the three present analytes, the major contributor to inter-element effect was identified, via a systematic approach. Compositions of two samples of yttrium aluminium silicate were determined, after incorporating inter-element correction factors.
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Authors
Remya Devi P.S
Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai
Trupti Chavan
Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai
Mridusmita Sarma
Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai
Kallola Swain
Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai