Abstract：Gallium-aluminum alloy is a kind of potential materials with special functions. The accurate determination of aluminum content is important for the study of its properties. The gallium-aluminum alloy sample was decomposed with the mixed acid (VHCl∶VHNO3∶VH2O=1∶1∶2). Al 394.401 nm was selected as the analytical line. The calibration curve was prepared by matrix matching method to eliminate the influence of gallium matrix on the determination of aluminum. The content of aluminum in gallium-aluminum alloy was determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). The interference tests of coexisting elements showed that the coexisting elements had no influence on the determination of aluminum. The mass concentration of aluminum in range of 1.00-20.00 μg/mL had a good linear relationship with the corresponding emission spectral intensity, and the linear correlation coefficient was 0.999 9. The limit of detection was 0.024% (mass fraction), and the limit of quantification was 0.080% (mass fraction). The proposed method was applied for the determination of aluminum in the gallium-aluminum alloys with different aluminum contents (mass fraction of 1.23%-16.01%). The relative standard deviations (RSD, n=6) of determination results were between 0.33% and 0.95%, and the spiked recoveries were between 98.21% and 100.2%.
[1] 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. Progre-ss in spectrophotometric determination of aluminium[J].Rock and Mineral Analysis,2006,25(1):64-67. [2] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 13748.1—2013 镁及镁合金化学分析方法 第1部分:铝含量的测定[S].北京:中国标准出版社,2013. [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].分析实验室,2015,34(6):698-701. ZHAO Rulin,HUANG Wei. Determination of aluminium in babbit alloy by chromazurol S sensitized spectrophotometry for volatile separation[J].Chinese Journal of Analysis Laboratory,2015,34(6):698-701. [4] 张玉平,高树峰,刘静.EDTA滴定法直接测定钒铝合金中铝[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. [5] 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. [6] 田伦富,代以春,邹德霜.电感耦合等离子体原子发射光谱法测定锡铝合金中铝[J].冶金分析,2021,41(6):83-86. TIAN Lunfu,DAI Yichun,ZOU Deshuang. Determinati-on of aluminum in tin-aluminum alloy by inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2021,41(6):83-86. [7] 周西林,王娇娜,刘迪,等.电感耦合等离子体原子发射光谱法在金属材料分析应用技术方面的进展[J].冶金分析,2017,37(1): 39-46. ZHOU Xilin,WANG Jiaona,LIU Di,et al.Progress in application of inductively coupled plasma atomic emission spectrometry in analysis of metal materials[J].Metallurgical Analysis,2017,37(1):39-46. [8] 罗海霞,王强.微波消解-电感耦合等离子体原子发射光谱法测定钴铬钨系合金粉末中钨[J].冶金分析,2022,42(2):40-46. LUO Haixia,WANG Qiang.Determination of tungsten in cobalt-chromium-tungsten alloy powder by inductively coupled plasma atomic emission spectrometry with microwave digestion[J].Metallurgical Analysis,2022,42(2):40-46. [9] 王志萍,王巧,孙洪涛,等.电感耦合等离子体原子发射光谱法测定高铍铍铝合金中铁锰铬镍镁[J].冶金分析,2021,41(11):78-83. WANG Zhiping,WANG Qiao,SUN Hongtao,et al.Determination of iron, manganese,chromium,nickel and magnesium in high-beryllium beryllium-aluminum alloy by inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2021,41(11):78-83. [10] 许宁辉,张众,张俊峰.电感耦合等离子体原子发射光谱法测定铌钨合金中钽硅铁铝钛铜[J].冶金分析,2021,41(1):80-86. XU Ninghui,ZHANG Zhong,ZHANG Junfeng.Determination of tantalum,silicon,iron,aluminum,titanium and copper in niobium-tungsten alloy by inductively coupled plasma atomic emission spectrometry[J].Metallurgical Analysis,2021,41(1):80-86. [11] 周莉莉,董礼男,朱春要,等.电感耦合等离子体原子发射光谱法测定铁铬铝合金中铝钛锆[J].冶金分析,2022,42(1):85-89. ZHOU Lili,DONG Linan,ZHU Chunyao,et al.Determination of aluminum,titanium and zirconium in iron-chromium-aluminum alloy by inductively coupled plasma optical emission spectrometry[J].Metallurgical Analysis,2022,42(1):85-89. [12] 王力强,魏双,王家松,等.敞口酸溶-电感耦合等离子体发射光谱法测定多金属矿中的铝锰钾钠钙镁硫[J].地质调查与研究,2019,42(4):259-262. WANG Liqiang,WEI Shuang,WANG Jiasong,et al. Determination of Al,Mn,K,Na,Ca,Mg,S in polymetallic ores by open acid solution-inductively coupled plasma emission spectrometry[J].Geological Survey and Research,2019,42(4):259-262.
