Application of High-frequency Inductively Coupled Plasma Emission Spectrometry to Analysis of Iron Ores

Abstract

Synopsis:
An application of Inductively Coupled Plasma-Optical Emission Spectrometry to iron are analysis was studied. Sample was easily fused with mixed flux (Na₂CO₃+Na₂B₄O₇ :1 + 1). Fused sample was dissolved with HNO₃ to prevent silica gelation. It was able to determine simultaneously SiO₂, Al₂O₃, CaO, MgO, TiO₂, Mn, P, Cu, Zn, V, and As, by this method, which needed two minutes for analysis of one sample solution. However, in the case of trace analysis, high relative ratio of background to the signal of analytical element caused decrease of analytical precision, and the analytical results of some elements were necessary to be corrected by Fe amount.
Good precision was obtained by this method compared with conventional method of chemical analysis.