Naslov
Extraction chromatographic separation of iron from complex liquid samples and the determination of 55Fe

Autori
Grahek, Željko ; Rožmarić Mačefat, Martina

Izvornik
Journal of Radioanalytical and Nuclear Chemistry (0236-5731) 267 (2005), 1; 131-137

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
iron; zinc; separation; TEVA; U/TEVA; TRU resin; extraction chromatography

Sažetak
Iron separation is described from liquid samples with a high concentration of ions that enables simple determination of 55Fe. One of the described methods consists of iron precipitation from a large volume seawater by sodium hydroxide and/or ammonium carbonate and separation from other elements (Ca, Sr, Cu, Mg, etc.) on a TRU column with 4M HCl or 8M HNO3. In the other procedure iron is separated directly from a mixture of seawater samples and HCl on TRU column. In both methods, the iron recovery is almost 100%. After separation, 55Fe is determined by counting with a liquid scintillation counter. The binding of Fe and Zn on TEVA, U/TEVA and TRU resins from seawater solutions of HCl and HNO3 depends on the type of the resin, concentration of acid and other ions. Iron and zinc can be separated from seawater on a U/TEVA column with 2M HCl.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Kemija

Napomena
Online

POVEZANOST RADA