Abstract：Chromite ore is a kind of mineral which is extremely difficult to be decomposed. It contains a variety of elements, and the common analysis method is to analyze each element separately which was tedious and time-consuming. Therefore, it is necessary to seek a simple and rapid analysis method. The sample was decomposed with 1.5g of sodium carbonate-sodium tetraborate at 1000℃ for 30min. Then, the acidification treatment was conducted using 50mL of 25% (V/V) hydrochloric acid. The content of Cr, Fe, Al, Mg, Si, Ca, Ti, Mn, Co, Ni and V was determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The determination method of major and minor elements in chromite ores (including Cr, Fe, Al, Mg, Si, Ca, Ti, Mn, Co, Ni and V) by ICP-AES was established. The effect of chromium on other elements was investigated. Other elements were determined using standard solution series with and without chromium, and the results had no significant difference. Therefore, the standard solution series without chromium were used for the determination of other elements. The linear correlation coefficients of calibration curves of elements were all not less than 0.9995 within linear range. The detection limits of the method were between 0.0003% and 0.008%. The contents of Cr, Fe, Al, Mg, Si, Ca, Ti, Mn, Co, Ni and V in certified reference materials of chromite ore (GBW07201 and GBW07819) were determined according to the experimental method. The relative standard deviation (RSD, n=12) of results was 0.41%-5.5%. The determination results were consistent with the certified values.
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