Abstract：The accurate determination of 11 impurity elements (including aluminum, cobalt, chromium, copper, iron, magnesium, manganese, nickel, lead, silicon and zinc) in beryllium is an important index to judge whether the beryllium material is qualified. At present, the standard for the determination of above impurity elements is GJB 2513A-2008 <Beryllium-Chemical Analysis Method>. The elements are determined one-by-one by photometry and atomic absorption spectrometry with very long measurement period. The sample was dissolved in hydrochloric acid-nitric acid system. Al 308.215nm, Co 230.786nm, Cr 284.325nm, Cu 324.754nm, Fe 261.187nm, Mg 285.213nm, Mn 260.569nm, Ni 221.647nm, Pb 182.205nm, Si 250.690nm and Zn 213.856nm were selected as the analytical lines. The standard solution series were prepared by the method of standard addition (MSA) to eliminate the influence of matrix effect. The determination method of 11 elements (including aluminum, cobalt, chromium, copper, iron, magnesium, manganese, nickel, lead, silicon and zinc) in beryllium by inductively coupled plasma atomic emission spectrometry (ICP-AES) was established. The linear correlation coefficients of calibration curves for elements were all higher than 0.9995. The limit of quantification was in range of 0.001%-0.002%. The experimental method was applied for the determination of aluminum, cobalt, chromium, copper, iron, magnesium, manganese, nickel, lead, silicon and zinc in beryllium sample. The relative standard deviations (RSD, n=10) of results were between 0.63% and 8.6%. The recoveries were between 90% and 110%. The contents of 11 elements in beryllium sample were determined according to the experimental method, and the found results were consistent with those obtained by GJB 2513A-2008.
孙洪涛, 王志萍, 白英丽, 王佳丽, 莫蓉. 电感耦合等离子体原子发射光谱法测定铍中11种杂质元素[J]. 冶金分析, 2020, 40(1): 56-62.
SUN Hong-tao, WANG Zhi-ping, BAI Ying-li, WANG Jia-li, MO Rong. Determination of eleven impurity elements in beryllium by inductively coupled plasma atomic emission spectrometry. , 2020, 40(1): 56-62.
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