Abstract： Through studying chemical composition and nature of submerged arc furnace slag of pyrometallurgicalnickel substrate material, the experimental method for trace/micro nickel was determined. Because the silica content in the samples was 40% to 65%, the sample was difficult to be dissolved, and there was serious negative interference on the determination of nickel. Adequate amount of hydrofluoric acid was required to be added to the samples in the process of dissolving the sample, so that the silica would generate SiF4 to be removed by heating. The rest coexisting ions in the solution were mainly Mg2+，Ca2+，Fe3+，Al3+，Cr6+ ，etc，among which Ca2+ had positive interference on the determination of nickel. By adding the same amount of Ca2+ to the blank solution, the interference was eliminated. Perchloric acid was the best medium, and when the acid concentration was controlled at 3% to 5%, the measured data was stable. The detection limit of the method was proved to be 0.001 2 mg/L. Through the analysis of nickel in four actual samples of submerged arc furnace slag ofpyrometallurgical nickel substrate material, the recoveries was 99% to 102%, and the relative standard deviation was in the range of 1.3% to 2.9%. The results are consistent with ICP-AES analysis results.
刘宪彬，王小翠，沈亚红，李奇特. 火焰原子吸收光谱法测定火法冶炼镍基体料矿热炉渣中镍[J]. 冶金分析, 2013, 33(1): 65-68.
LIU Xian-bin, WANG Xiao-cui, SHEN Ya-hong, LI Qi-te. Determination of nickel in submerged arc furnace slag of pyrometallurgical nickel substrate material by flame atomic absorption spectrometry. , 2013, 33(1): 65-68.
［5］邵从和，陈小燕.铜精矿中镍的分析方法研究［J］. 理化检验-化学分册(Physical Testing and Chemical Analysis :Part B Chemical Analysis)，2000，38（3）：129.
［6］Ramachandraiah C,Kumar Rajesh J,Reddy Janardhan K.Development of a highly sensitive extractive spectrophotometrie method for the determination of nickel from environmental matrices using N-ethyl-3-carbazolecarboxaldehyde-3-thiosemicarbazone［J］.Journal of Environmental Management,2008,88(4):729-736.
［7］Niazi Ali,Yazdanipour Ateesa.Simultaneous spectrophotometric determination of cobalt,copper and nickel using 1-(2-thiazolylazo)-2-naphtholby chemometrics methods［J］.Chinese Chemical Letters,2008,19(7):860-864.
［11］Kong Xiang-fei,Qiong Jia,Zhou Wei-hong.Coupling on-line preconcentration by ion-exchange with microwave plasmatorch-atomic emission spectrometry for the determination of cobalt and nickel［J］.Talanta,2007,87(2):132-138.
［12］Ghaedi M,Shokrollahi A,Ahmadi F.Cloud point extraction for the determination of copper,nickel and cobalt ions in environmental samples by flame atomic absorption spectrometry［J］.Journal of Hazardous Materials,2008,150(3):533-540.
［13］张红玲，石如祥.火焰原子吸收光谱法测定无铅锡基焊料中镍［J］.分析试验室（Chinese Journal of Analysis Laboratory）,2011,30(12):101-103.
