Determination of arsenic in high-purity copper by flameless atomic-absorption spectrophotometry
Arsenic is separated from an ammoniacal solution containing 1 g or less of copper(II) by co-precipitation with ferric hydroxide. The precipitate is dissolved in nitric acid, the solution almost neutralized with ammonia, made up to volume and the As determined by flameless atomic-absorption spectroph...
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| Veröffentlicht in: | Talanta (Oxford) 1977-10, Vol.24 (10), p.657-658 |
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| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Arsenic is separated from an ammoniacal solution containing 1 g or less of copper(II) by co-precipitation with ferric hydroxide. The precipitate is dissolved in nitric acid, the solution almost neutralized with ammonia, made up to volume and the As determined by flameless atomic-absorption spectrophotometry. Less than 0.5 ppm can be determined. |
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| ISSN: | 0039-9140 1873-3573 |
| DOI: | 10.1016/0039-9140(77)80116-1 |