Abstract：The content of Pb element in iron and steel has been investigated in detail by energy dispersive X-ray fluorescence spectrometry (EDXRF). It is showed that, FeKα sum-peak was the main interference factor affecting the accuracy of the testing. The formation mechanism of the sum-peak was analyzed, and a mathematical model was established. By calculating the occurrence probability of sum-peaks was obtained and experimentally verified. The sum-peak correction working curve (SPCWC) was established and used for the determination of Pb in iron samples, and the results were consistent with those from atomic absorption spectrometry (AAS). The detection limit of the method was 24.1 μg/g．Twelve times determinations for standard sample with lead mass fraction of 170 μg/g were conducted, and the relative standard deviation (RSD) obtained was 3.26 %.
李 强，黄万燕，王勇刚，吴 敏 . 能量色散X射线荧光光谱法测量钢铁中的铅[J]. 冶金分析, 2012, 32(7): 41-44.
LI Qiang, HUANG Wan-yan, WANG Yong-gang，et al. Determination of lead in iron and steel by energy dispersive X-ray fluorescence spectrometry.. , 2012, 32(7): 41-44.
