Abstract：The sample was dissolved with hydrochloric acid and hydrogen peroxide. B 249.678 nm, Bi 306.771 nm, Cd 228.802 nm, Co 228.615 nm, Ga 294.363 nm and Li 670.783 nm were selected as analytical lines. The calibration curve was prepared with matrix matching method to eliminate the influence of matrix effect. The content of boron, bismuth, cadmium, cobalt, gallium and lithium was determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Consequently, a simultaneous determination method of microelements including boron, bismuth, cadmium, cobalt, gallium and lithium in aluminum alloy was established. The mass concentration of elements within certain range was linear to the corresponding emission intensity with correlation coefficients higher than 0.999 8. The detection limit was between 0.1 μg/g and 3.7 μg/g. The content of boron, bismuth, cadmium, cobalt, gallium and lithium in aluminum alloy sample was determined according to the proposed method. The relative standard deviations (RSD, n=8) were less than 5%. The recoveries were between 94% and 106%. The proposed method was applied to the determination of boron, bismuth, cadmium, cobalt, gallium and lithium in three certified reference materials of aluminum alloy, and the results were consistent with the certified values.
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