Trace amounts of impurities in electrolytic manganese metal by sector field inductively coupled plasma mass spectrometry
来源期刊：中南大学学报(英文版)2013年第12期
论文作者：NIE Xi-du(聂西度) LIANG Yi-zeng(梁逸曾) TANG You-gen(唐有根) XIE Hua-lin(谢华林)
文章页码：3385 - 3390
Key words：sector field inductively coupled plasma mass spectrometry; electrolytic manganese; impurities; spectral interferences; matrix effects
Abstract: An analytical method, using sector field inductively coupled plasma mass spectrometry (SF-ICP-MS) for rapid simultaneous determination of Be, Na, Mg, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, As, Sn, Sb, Pb and Bi in electrolytic manganese metal, was described. At the beginning, the samples were decomposed by HNO3 and H2SO4, and then analyzed by SF-ICP-MS. Most of the spectral interferences could be avoided by measuring in different mass resolution modes. The matrix effects due to the excess of sulfuric acid and Mn were evaluated. Correction of matrix effects was conducted by using the internal standard elements. The optimum condition for the determination was investigated and discussed. The detection limit is in the range of 0.001-0.169 μg/L. The current method is applied to the determination of trace impurities in electrolytic manganese metal. And experiments show that good results can be obtained much faster, more accurately and conveniently by current method.
NIE Xi-du(聂西度)1, 2, LIANG Yi-zeng(梁逸曾)1, TANG You-gen(唐有根)1, XIE Hua-lin(谢华林)3
(1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;
2. Department of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China;
3. College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling 408100, China)
Abstract:An analytical method, using sector field inductively coupled plasma mass spectrometry (SF-ICP-MS) for rapid simultaneous determination of Be, Na, Mg, Si, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, As, Sn, Sb, Pb and Bi in electrolytic manganese metal, was described. At the beginning, the samples were decomposed by HNO3 and H2SO4, and then analyzed by SF-ICP-MS. Most of the spectral interferences could be avoided by measuring in different mass resolution modes. The matrix effects due to the excess of sulfuric acid and Mn were evaluated. Correction of matrix effects was conducted by using the internal standard elements. The optimum condition for the determination was investigated and discussed. The detection limit is in the range of 0.001-0.169 μg/L. The current method is applied to the determination of trace impurities in electrolytic manganese metal. And experiments show that good results can be obtained much faster, more accurately and conveniently by current method.
Key words:sector field inductively coupled plasma mass spectrometry; electrolytic manganese; impurities; spectral interferences; matrix effects
