Simultaneous determination of trace arsenic, antimony, selenium and tellurium in pure copper by hydride generation-four-channel non-dispersive atomic fluorescence spectrometry
NI Ying-rui, LI Zhong-xi, LI Hai-tao,et al
(1.Northwest Nonferrous Geological Research Institute, Xian 710054, China;
2.Xi’an Qinjing Limited Liability Company of Shannxi Gold, Xian 710054, China;
3.Xi'an Xieli Power Science and Technology Co.,Ltd., Xian 710119, China)
Abstract：After samples were dissolved by nitric acid, lanthanum hydroxide was used to co-precipitate As, Sb, Se, and Te for separation with copper substrate in ammonia medium,and As, Sb, Se, and Te in pure copper were simultaneously determined by hydride generation-four-channel non-dispersive atomic fluorescence spectrometry. Hydride generation conditions and operation parameters for simultaneous determination of four elements were optimized. The results showed that, under optimal conditions, the detection limit of As, Sb, Se and Te were 0.04, 0.05, 0.04 and 0.03 ng/mL respectively, and relative standard deviation (RSD, n=7) were 0.97%, 0.77%, 0.57 % and 1.0% respectively for 20 ng/mL As, Sb and 10 ng/mL Se, Te mixed standard solution. This method was applied to simultaneous determination of As, Sb, Se, and Te in actual samples. The determination results had no significant difference with those obtained by national standard method, and the relative standard deviation was 7.0% with recoveries of 94%-105%.
倪迎瑞,，李中玺,，李海涛,，秦 靖,，张圣杰,，薛振宇,，张 燕 . 氢化物发生-四通道无色散原子荧光光谱法同时测定纯铜中的痕量砷锑硒碲[J]. 冶金分析, 2012, 32(9): 26-29.
NI Ying-rui, LI Zhong-xi, LI Hai-tao,et al. Simultaneous determination of trace arsenic, antimony, selenium and tellurium in pure copper by hydride generation-four-channel non-dispersive atomic fluorescence spectrometry. , 2012, 32(9): 26-29.
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