Spectrophotometric study and analytical application of rare-earth Tiron complexes-II Determination of europium |
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Authors: | Taketatsu T Yamauchi T |
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Institution: | College of General Education Kyushu University Fukuoka, Japan. |
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Abstract: | The absorption spectra of europium-Tiron complexes in aqueous solution have been measured from 340 to 600 nm. The absorbance at 390 and 420 nm follows Beer's law up to 0.8 mg ml (pH 6.2-6.6). Other rare earths except for cerium(III) did not interfere. The interference of cerium could be removed by addition of ascorbic acid. The combining ratio of Tiron to europium has been found to be 1:1. |
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