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Pre-concentration of traces of tin by coprecipitation with yttrium hydroxide for electrothermal atomisation atomic absorption spectrometry

โœ Scribed by Kikuo Takeda; Chikashi Akamatsu; Yasuhiko Inoue

Book ID
112292471
Publisher
Springer
Year
1991
Tongue
English
Weight
378 KB
Volume
339
Category
Article
ISSN
1618-2650

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## Coprecipitation is applied to the determination of trace amounts of manganese by electrothermal atomisation atomic absorption spectrometry. Manganese (0.05-l pg) is coprecipitated quantitatively from the sample solution (50-500 ml) with yttrium hydroxide at pH 9.0-11.3. The atomic absorbance o

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Nanogram amounts of trace heavy metals are quantitatively coprecipitated with tin( IV) hydroxide at pH 5-6. After centrifugation, the precipitate is dissolved in nitric acid and the solution is allowed to stand overnight to form stannic acid. More than 90% of tin is precipitated, leaving trace heavy