Abstract：Totally 12 elements in lead-antimony alloy, including the major element （Sb）, minor and trace elements （As, Cu, Sn, Se, Ag, Bi, Fe, Zn, Ni, Cd, Mn） were simultaneously determined by full spectrum directly reading inductively coupled plasma atomic emission spectrometer. Nitric acid was used to decompose the sample, while citric acid was added to inhibit the hydrolysis of Sb. Different sample dissolution methods and instrumental parameters were tested. Under the optimized conditions, the detection limits of elements were as follows: 0. 01 μg/g for Sn, Ag and Fe; 0.02 μg/g for Mn; 0.03 μg/g for Bi and Cd; 0.04 μg/g for Sb, As and Zn; 0.05 μg/g for Se and Ni; 0.08 μg/g for Cu. The matrix lead caused background interference in the determination. However, it could be eliminated by lead sulfate precipitation. The proposed method had been applied to the determination of twelve elements described above in lead-antimony alloy, and the results were consistent with those obtained by atomic fluorescence spectrometry or atomic absorption spectrometry. The relative standard deviations （RSD, n=11） were 0.87 %-3.8 %, and the recoveries of standard addition were 95.2 %-107.4 %.
