Radiochemical study of Cd , Co and Eu coprecipitation with Iron Hydroxide in seawater
Chakravorty, R.; Van Grieken, R. (1986). Radiochemical study of Cd , Co and Eu coprecipitation with Iron Hydroxide in seawater. Microchim. Acta 3: 81-87
In: Microchimica Acta. Springer Verlag: Wien; New York. ISSN 0026-3672; e-ISSN 1436-5073, more
Chemical elements > Metals > Heavy metals > Cadmium Chemistry > Radiochemistry Separation > Chemical precipitation > Coprecipitation Water > Sea water Marine/Coastal
The coprecipitation of Cd, Co and Eu from seawater onto ferric hydroxide was studied, using the radioactive tracers 109Cd, 60Co and 152-154Eu, as a function of the pH, the concentration of the collector iron, the concentration of the metal spike and the aging of the internally formed precipitate. For preconcentration purpose, a pH 9 and a 35 ppm iron concentration appeared to be suitable. At pH 8, the natural pH of seawater, the distribution coefficients for Cd, Co and Eu are 104.5, 105 and 107, respectively.
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