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Interference effect of chloride on the determination of bismuth by electrothermal atomic absorption spectrometry |
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| Authors: | Koji Matsusaki Takashi Yoshino Yuroku Yamamoto |
| Affiliation: | Department of Industrial Chemistry, Technical College, Yamaguchi University, Tokiwadai, Ube 755 Japan;Department of Industrial Chemistry, Faculty of Engineering, Yamaguchi University, Tokiwadai, Ube 755 Japan;Department of Chemistry, Faculty of Science, Hiroshima University, Higashisendo-machi Naka-ku Hiroshima 730 Japan |
| Abstract: | The effects of various chloride salts on the graphite-furnace atomic absorption signal of bismuth are described. The chloride interference arises from coordination of chloride ions to bismuth(III) in solution, as confirmed by u.v. spectrophotometric and polarographic studies on the interaction of hydrochloric acid and bismuth(III) in solution. The interference can be removed by addition of diammonium-EDTA. |
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