Determination of calcium and iron in silicon and uranium silicide using ion chromatography |
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Authors: | M. K. Das V. V. Raut S. B. Deb S. Jeyakumar M. K. Saxena B. S. Tomar |
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Affiliation: | 1. Radioanalytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
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Abstract: | Two separate ion chromatography methods were developed for the determination of calcium and iron in silicon and uranium silicide. A cation exchange separation with conductivity detection was developed for Ca. A reversed phase column modified with 50 mM camphor-10-sulphonic acid was used for separating Fe. Iron was detected photometrically. Linear calibrations for Ca (0.1–10 ppm) and Fe (0.5–25 ppm) were performed. Limits of detections for Ca and Fe are 0.03 and 0.2 ppm, respectively. The precision of the methods are better than 2 % for Ca at 0.2 ppm and Fe at 2 ppm. |
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