Abstract：Tin-aluminum alloy was a potential functional material for special physical experiments. The accurate determination of aluminum content in alloy was important for the study of this material. The tin-aluminum alloy sample was dissolved with the diluted aqua regia. Al 396.152 nm was selected as the analytical line. The calibration curve was prepared by matrix matching method to eliminate the matrix effect. A determination method of aluminum in tin-aluminum alloy was established by inductively coupled plasma atomic emission spectrometry (ICP-AES). When the mass concentration of aluminum was in the range of 1.00-20.00 mg/L, it had good linear relationship with the corresponding spectral intensity. The correlation coefficient (r) was 0.999 9. The limit of detection of method was 0.001 3% (mass fraction, similarly hereinafter), and the limit of quantification was 0.004 3%. The content of aluminum in three tin-aluminum alloy samples was determined according to the experimental method. The relative standard deviations (RSD, n=6) of determination results were not higher than 1.3%, and the recoveries were between 97% and 102%. The determination results were basically consistent with those obtained by spectrophotometry.
[1] 张玉平,高树峰,刘静. EDTA滴定法直接测定钒铝合金中的铝[J].理化检验(化学分册),2016,52(1):106-108. ZHANG Yuping,GAO Shufeng,LIU Jing. Direct determination of aluminum content in vanadium-aluminum alloy by EDTA titration[J].Physical Testing and Chemical Analysis(Part B: Chemical Analysis),2016,52(1):106-108. [2] 何超.强碱分离EDTA滴定法测定铝镁钙合金中铝的含量[J].天津冶金,2018(3):53-54. HE Chao.Determination of aluminum content in Al-Mg-Ca alloy by the strong alkali separation EDTA titrimetric method[J].Tianjin Metallurgy,2018(3):53-54. [3] 赵如琳,黄薇.挥发分离-铬天青S增敏分光光度法测定巴氏合金中铝[J].分析试验室,2015,34(6):698-701. ZHAO Rulin,HUANG Wei.Determination of aluminum in babbit alloy by chromazurol S sensitized spectrophotometry for volatile separation[J]. Chinese Journal of Analysis Laboratory,2015,34(6):698-701. [4] 李景梅,贾宝山,翟庆洲,等.分光光度法测定铝的进展[J].岩矿测试,2006,25(1):64-67. LI Jingmei,JIA Baoshan,ZHAI Qingzhou,et al.Progress in spectrophotometric determination of aluminium[J].Rock and Mineral Analysis,2006,25(1):64-67. [5] 苏爱萍,海兰,石如祥.石墨炉原子吸收光谱法测定锡铅焊料中铝[J].冶金分析,2015,35(4):59-64. SU Aiping,HAI Lan,SHI Ruxiang.Determination of aluminum in tin-lead solders by graphite furnace atomic absorption spectrometry[J].Metallurgical Analysis,2015,35(4):59-64. [6] 苏爱萍,海兰.石墨炉原子吸收光谱法测定锡锭中痕量铝[J].冶金分析,2012,32(11):67-71. SU Aiping,HAI Lan.Determination of trace aluminum in tin ingot by graphite furnace atomic absorption spectrometry[J].Metallurgical Analysis,2012,32(11):67-71. [7] 马丽.电感耦合等离子体原子发射光谱(ICP-AES)法测定锡铅焊料中11种微量元素[J].中国无机分析化学,2017,7(3):51-54. MA Li.Determination of 11 trace elements content in tin-lead solders by inductively coupled plasma atomic emission spectrometry (ICP-AES)[J].Chinese Journal of Inorganic Analytical Chemistry,2017,7(3):51-54. [8] 曹海波. ICP-AES法测定铝-锡-锆-钼-铬合金中七种元素[J].世界钢铁,2014(3):69-72. CAO Haibo.Determination of seven elements in Al-Sn-Zr-Mo-Cr alloy by inductively coupled plasma atomic emission spectrometry[J].World Iron & Steel,2014(3):69-72. [9] 马晓敏,禄妮,周恺,等. ICP-MS法测定高纯锡中痕量锌、铝、镉和银[J].中国测试,2018,44(6):38-41. MA Xiaomin,LU Ni,ZHOU Kai,et al. Quantitative determination of zinc,aluminium,cadmium and silver in high-purity tin by ICP-MS[J].China Measurement & Test,2018,44(6):38-41. [10] 王凌,张家琪,华犇. X射线荧光光谱法测定锌铝镁合金中锌,铝,镁,硅,铁,钛,钙,锆和铈[J].分析试验室,2017,36(6):738-741. WANG Ling,ZHANG Jiaqi,HUA Ben.Determination of Zn,Al,Mg,Si,Fe,Ti,Ca,Zr and Ce components in zinc aluminum magnesium alloy by X-ray fluorescence spectrometry[J].Chinese Journal of Analysis Laboratory,2017,36(6):738-741. [11] 辛仁轩.等离子体发射光谱分析[M].2版.北京:化学工业出版社,2011,175.
