Journal
JOURNAL OF ANALYTICAL CHEMISTRY
Volume 64, Issue 10, Pages 1042-1046Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1061934809100128
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- Russian Foundation for Basic Research [08-05-00240-a]
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The individual sources of errors in procedures used for considering matrix effects were studied. The ZAF and PRZ analytical programs provided good correction in the predominance of one of the matrix effects, namely, absorption or the atomic number. Their simultaneous occurrence increased the total error to 2-4 rel %. In the ZAF method, normalization to oxygen in terms of stoichiometry introduced errors if the sample simultaneously contained the test element in various oxide forms. The greatest error of up to 1-2 wt % appeared in simple and double oxides. In the analysis of the main rockforming silicates with the determination of total iron as FeO, the presence of Fe(2)O(3) can change the concentration of components to similar to 0.2%.
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