Abstract
A method for more accurate accounting for interelemental interferences was proposed. For each element within the range 18 < Z < 36, the regularities in the behavior of interference factors were revealed for eight neighboring elements and heavier elements up to Z + 5. The width and boundaries of the analytical energy range and the number of cycles of successive approximations for determining peak areas were optimized. This provided a sharp decrease (two- to fourfold) in the limit of detection for a complicated problem, the determination of cobalt in ocean nodules, c min, 0.95 = 0.032%. The absolute standard deviation in the method was S abs = 0.025%. The regularities found and the databases created on their basis can be used in software packages for other energy-dispersion spectrometers, including those with total external reflection.
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Ivanenko, V.V., Kustov, V.N., Metelev, A.Y. et al. Correction for Interelemental Interferences in X-ray Radiometric Analysis. Journal of Analytical Chemistry 57, 142–144 (2002). https://doi.org/10.1023/A:1014051504317
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DOI: https://doi.org/10.1023/A:1014051504317