Abstract
In connection with our 1st and 2nd report of “Quantitative Spectrochemical Analysis of Silicon and Vanadium in Titanium Tetrachloride”, the spectral line pairs for determination of magnesium, iron, manganese and silicon in titanium sponge were studied by 5×5 Graeco-Latin square experiments, bifactorial experiment and standard deviation, calculated from 50 repeated analysis. The titanium sponge sample was dissolved without boiling in dilute hydrochloric acid (5 g Ti/50 cc HCl (1:1)) on a hot plate. Besides of sample preparation, all of the analytical conditions and procedures were identical to those described in our 1st report. The variation coefficient and the limits of these analytical line pairs are shown in Table 5.
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