1.
Optimization of the arsenazo-III method for the determination of uranium in water and plant samples.
Talanta
; 115: 751-4, 2013 Oct 15.
Artículo
en Inglés
| MEDLINE
| ID: mdl-24054658
RESUMEN
This work reports a reliable, fast and optimized photometric technique based on the specific chemical complexation of uranyl ion with arsenazo-III. In the case of solid samples (plant samples), for which mineralization under acidic and oxidative conditions was used, addition of ascorbic acid led to stabilization of the arsenazo-uranyl complex over time. The results, in total agreement with data obtained from α and γ spectrometries, demonstrate that the present technique is able to precisely quantify uranium in water as well as in plant samples, within the µg/L and mg/g ranges respectively.