A method is described for the determination of the antimony content of titanium dioxide by atomic-absorption spectrophotometry, based on the extraction of antimony with isobutyl methyl ketone. This method is more sensitive than determination by emission-spectrographic and as sensitive as the colorimetric technique, and can detect 25 p.p.m. of antimony in a 0·1-g sample of titanium dioxide.
J. C. Méranger and E. Somers, Analyst, 1968, 93, 799 DOI: 10.1039/AN9689300799
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