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Simultaneous separation of tin and bismuth from water and sea water by flotation with thionalide

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Summary

A method is described for the simultaneous flotation of low μg l−1 levels of tin and bismuth in water and sea water. Tin(IV) and bismuth(III) in a 1000 ml sample is coprecipitated with thionalide at pH 2–3. The precipitate is floated with the aid of a surfactant and small nitrogen bubbles, then dissolved in acetone and digested with nitric and perchloric acids for hydride generation-atomic absorption spectrophotometry. Recoveries of tin and bismuth at the levels of 20 μg added to water and sea water were more than 88%.

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Nakashima, S. Simultaneous separation of tin and bismuth from water and sea water by flotation with thionalide. Fresenius J Anal Chem 343, 614–615 (1992). https://doi.org/10.1007/BF00324827

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  • DOI: https://doi.org/10.1007/BF00324827

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