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Séparation de traces métalliques sur goutte de mercure : application à la préconcentration de Cu(II) et Cu(I)

Other titleSeparation of Traces of Metals on a Mercury Drop : Application to the Preconcentration of Cu(II) and Cu(I)
Published inFresenius' Zeitschrift für Analytische Chemie, vol. 264, no. 5, p. 376-377
Publication date1973
Abstract

A method for the rapid separation of copper(II) traces on metallic mercury is proposed. The separation is rendered possible by the reduction of Cu(II) to Cu(I) on mercury in the presence of iodide ions followed by the adsorption of the uncharged complex, Cu(I), on Hg0. After a minute of agitation, this adsorption is quantitative (90–100%) for initial concentrations of Cu(II) between 10−4 to 10−6 M and iodide cone, of 10−2 to 10−3 M at pH 3. The volumes of the aqueous solutions are of the order of 3–10 ml and those of the drops of mercury between 0.5–1 ml. The tests were made using the isotope 64Cu (T1/2 = 12.8 h).

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Citation (ISO format)
HAERDI, Werner, MÉRAT, Ed. Séparation de traces métalliques sur goutte de mercure : application à la préconcentration de Cu(II) et Cu(I). In: Fresenius” Zeitschrift für Analytische Chemie, 1973, vol. 264, n° 5, p. 376–377. doi: 10.1007/Bf00423636
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ISSN of the journal0016-1152
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