Abstract：As two main elements that affect the performance of tin-based babbitt alloy, antimony and copper are the key index for evaluating the quanlity of tin-based babbitt alloy. So it is necessary for accurate determination of them, but existing methods have the defects of complex operation process or incapability of simultaneous determination, etc. Copper and antimony in tin-based babbitt alloy were determined simultaneously by inductively coupled plasma atomic emission spectrometry (ICP-AES) in 20% HCl at 231.446 nm and 217.582 nm for antimony and 324.752 nm for copper after the sample was dissolved with HCl and H2O2. Spectral interference was eliminated through selection of the spectral lines free of interference and two-point correction method, while physical interference was eliminated by matrix matching method. The calibration curve showed a fine linear relationship with the correlation coefficient both not less than 0.999 7. The determination range of antimony was 0.10%-20% (mass fraction), and that of copper was 0.03%-15% (mass fraction). The proposed method has been applied to determine antimony and copper in tin-based bearing alloy certified reference materials, whose results were consistent with certified values. The thin-basd babbitt alloy actual sample was determined by this proposed method with relative standard deviation (RSD, n=10) less than 0.7%.
杜米芳. 电感耦合等离子体原子发射光谱法测定锡基巴氏合金中锑和铜[J]. 冶金分析, 2014, 34(9): 43-47.
DU Mi-fang. Determination of copper and antimony in tin based babbitt alloy by inductively coupled plasma atomic emission spectrometry. , 2014, 34(9): 43-47.
