ICP-AES Determination of 8 Impurity Elements in Nitrided Ferrovanadium

Methods of ICP-AES for the determination of 8 impurity elements (Al, Cr, Mg, Mn, P, K, Na and Si) in nitrided ferrovanadium was proposed. The sample was semi quantitatively analyzed by XRFS. Based on the results of XRFS analysis, standard solutions were prepared by matrix matching for preparation of working curves, and ICP-AES was applied to the determination of the 8 elements in the sample. Analytical spectral lines of 236.705, 205.560, 285.213, 279.079, 213.618, 769.896, 330.298, 256.611 nm were chosen for the determination of the 8 elements respectively. The proposed method was applied to the analysis of production samples of nitrided ferrovanadium, giving values of RSD′s (n=10) in the range of 0.29%-4.5%. Recovery was tested by standard addition method, giving results in the range of 96.0%-105%.