| 电感耦合等离子体质谱法测定磷矿石中锰、铜、铅、锌、铬、镉 |
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| 引用本文： | 王建波,柴昌信,黄兴华,祝建国. 电感耦合等离子体质谱法测定磷矿石中锰、铜、铅、锌、铬、镉[J]. 分析测试技术与仪器, 2015, 0(4): 270-273 |
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| 作者姓名： | 王建波 柴昌信 黄兴华 祝建国 |
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| 作者单位： | 国土资源部兰州矿产资源监督检验中心, 甘肃兰州 730050;国土资源部兰州矿产资源监督检验中心, 甘肃兰州 730050;国土资源部兰州矿产资源监督检验中心, 甘肃兰州 730050;国土资源部兰州矿产资源监督检验中心, 甘肃兰州 730050 |
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| 摘 要： | 建立了HNO3-HCl O4-HF混合酸溶样,电感耦合等离子体质谱法同时测定磷矿石中的锰、铜、铅、锌、铬和镉等6个微量重金属元素的有效方法.试验中对仪器的最佳工作参数进行了优化,选择适当的同位素,并用铑作内标元素,有效地抑制了分析信号的漂移.在选定的条件下,对样品进行了精密度和回收率试验,方法相对标准偏差(RSD,n=9)为0.99%~1.98%,加标回收率为98.0%~102.0%.
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| 关 键 词： | 电感耦合等离子体 磷矿石 微量重金属元素 |
| 收稿时间： | 2015-10-26 |
| 修稿时间： | 2015-12-02 |
Determination of Manganese,Copper,Lead,Zinc,Chromium and Cadmium in Phosphate Rock by Inductively Coupled Plasma Mass Spectrometry |
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| WANG Jian-bo,CHAI Chang-xin,HUANG Xing-hua and ZHU Jian-guo. Determination of Manganese,Copper,Lead,Zinc,Chromium and Cadmium in Phosphate Rock by Inductively Coupled Plasma Mass Spectrometry[J]. Analysis and Testing Technology and Instruments, 2015, 0(4): 270-273 |
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| Authors: | WANG Jian-bo CHAI Chang-xin HUANG Xing-hua ZHU Jian-guo |
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| Affiliation: | Lanzhou Testing and Quality Supervision Center for Geological and mineral Products, The Ministry of land and Resources, Lanzhou 730050, china;Lanzhou Testing and Quality Supervision Center for Geological and mineral Products, The Ministry of land and Resources, Lanzhou 730050, china;Lanzhou Testing and Quality Supervision Center for Geological and mineral Products, The Ministry of land and Resources, Lanzhou 730050, china;Lanzhou Testing and Quality Supervision Center for Geological and mineral Products, The Ministry of land and Resources, Lanzhou 730050, china |
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| Abstract: | A method for the determination of manganese,copper,lead,zinc,chromium and cadmium in phosphate rock by inductively coupled plasma-mass spectrometry(ICP-MS) is established. The ICP-MS instrument operating parameters were optimized. The mass spectral interferences were eliminated by selecting 55Mn,65Cu,208Pb,66Zn,52Cr and 114Cd as the analytical isotopes. And Rh was selected as the internal standard to compensate the analytical signal drift. Under the optimized conditions with a HNO3-HClO4-HF digestion system,the recoveries for these elements were 98.0%~102.0% with a precision of 0.99%~1.98% RSD(n=9).The proposed method has been applied to the determination of these trace heavy metal elements with satisfactory results. |
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| Keywords: | ICP-MS phosphate rock trace heavy metal elements |
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