Abstract:After the sample was decomposed by NaOH fusion, the fusant was leached with hot water, and tartaric acid was added for complexation of easily-hydrolyzed elements such as W, Mo, Nb and Ta. Then, forty components in bauxite were simultaneously determined by inductively coupled plasma atomic emission spectrometry in hydrochloric acid medium including Al2O3、SiO2、Fe2O3、TiO2、CaO、MgO、K2O、P2O5、MnO、Ga、Ge、V、Li、Cr、Nb、Ta、Sr、Zr、Hf、Sc、La、As、B、Ba、Be、Bi、Cd、Co、Cu、Ni、Pb、Sb、Sn、Tl、Zn、Mo、Se、In、Te and W. The spectral interference was avoided by selecting analytical lines, properly setting background deduction position and correction coefficient of interference elements. The detection limit of method was 0.05-0.85 μg/g. Forty components in national certified reference materials and actual samples of bauxite were determined by this method. The results were consistent with the certified values and those obtained by chemical method, and the relative standard deviation (RSD, n=11) was 0.15 %-5.9 %.