Abstract：The sample was dissolved with hydrochloric acid and nitric acid. The influence of matrix effect was eliminated by the preparation of calibration curve with matrix matching method. Be 313.107 nm with high sensitivity, which was not influenced by the coexisting elements, was selected as the analytical line. Thus, an analysis method of beryllium with mass fraction of 0.000 05%-0.000 5% in aluminum alloy was established by inductively coupled plasma atomic emission spectrometry (ICP-AES). The detection limit of beryllium in this method was 0.000 001 6% (mass fraction). When the mass concentration of beryllium was in range of 0.002-0.020 μg/mL, the linear regression equation of calibration curve was I=8.894×106ρ+1.747×105 with correlation coefficient of r=0.999 6. The content of beryllium in certified reference material of aluminum alloy was determined according to the experimental method. The results were consistent with the certified values. The relative standard deviations (RSD, n=8) were less than 10%.
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