A sensitive and rapid method for the determination of uranium, thorium, zirconium, titanium, molybdenum and vanadium by inductively coupled plasma atomic emission spectrometry (ICP-AES) after solid-liquid extraction with microcrystalline naphthalene is developed. Analytes were quantitatively adsorbed as their oxinate complexes on naphthalene and determined by ICP-AES after stripping with 2 M HC1. The effect of various experimental parameters such as pH, reagent amounts, naphthalene amount and stripping conditions on the determination of these elements was investigated in detail. Under the optimized experimental conditions, the detection limits of this method for U (VI), Th(IV), Zr(IV), Ti(rV), Mo(VI) and V(V) were 20.0 ng mL-1 and the relative standard deviations obtained for three replicate determinations at a concentration of 1.0 ug mL'1 were 1.5-3.0%. The proposed method has been applied in the analysis of SY-2, SY-3 and pre-analysed samples for U, Th, Zr, Ti, Mo and V the analytical results are in good agreement with recommended values.
|Number of pages||5|
|Journal||Exploration and Research for Atomic Minerals|
|State||Published - Oct 2013|
- ICP-AES preconcentration