Colour reaction of scandium with quercetin and its application to the analysis of scandium |
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| Authors: | Hiroshi Hamaguchi Rokuro Kuroda Ryuitiro Sugisita Naoki Onuma Tsuneo Shimizu |
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| Affiliation: | Department of Chemistry, Tokyo Kyoiku University, Otsuka-Kubomachi, Bunkyo-ku, TokyoJapan |
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| Abstract: | A spectrophotometric study of the scandium-quercetin complex is described; μg amounts of scandium can be determined with quercetin at 43.5 mμ and pH 4.4. A 1:1 complex is formed. The apparent instability constant of the complex was estimated as 2.7·10-7 by a spectrophotometric method. An ion-exchange method for separating scandium from several interfering ions is described. |
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