| 等离子体质谱法测定大米、茶叶中痕量稀土元素 |
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| 引用本文： | 林文业,黄一帆,黄文琦,龙智翔. 等离子体质谱法测定大米、茶叶中痕量稀土元素[J]. 广东微量元素科学, 2008, 15(11): 41-45 |
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| 作者姓名： | 林文业 黄一帆 黄文琦 龙智翔 |
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| 作者单位： | 广西分析测试研究中心,广西,南宁,530022;广西分析测试研究中心,广西,南宁,530022;广西分析测试研究中心,广西,南宁,530022;广西分析测试研究中心,广西,南宁,530022 |
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| 摘 要： | 采用ICP—MS等离子体质谱法和使用HNO3＋H2O2混酸体系高压密闭微波前处理样品联合技术，同时测定了大米、茶叶样品中15种稀土元素（La、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb、Lu、Y）含量。对消化条件、测定方法和等离子体质谱测定条件进行了优化选择，并进行了国家标准物质的对照分析质量验证。结果表明，检测方法的准确度达90％-110％，相对标准偏差（RSD）〈8％，仪器检出限为50—70ng／kg。该法快速灵敏，准确可靠，能够满足检测要求。
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| 关 键 词： | 等离子体质谱法(ICP-MS) 大米 茶叶 痕量稀土元素 标准物质 |
Simultaneous Determination of 15 Kinds of Trace Rare Earth Elements Concentration in Rice and Tea by ICP-MS |
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| LIN Wenye,HUANG Yifan,HUANG Wenqi,LONG Zhixiang. Simultaneous Determination of 15 Kinds of Trace Rare Earth Elements Concentration in Rice and Tea by ICP-MS[J]. Trace Elements Science, 2008, 15(11): 41-45 |
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| Authors: | LIN Wenye HUANG Yifan HUANG Wenqi LONG Zhixiang |
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| Affiliation: | LIN Wenye, HUANG Yifan, HUANG Wenqi, LONG ,Zhixiang (Guangxi Research Center for Analysis and Test, Nanning 530022, China) |
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| Abstract: | A simple,selective and sensitive method for simultaneous determination of 15 kinds of rare earth elements concentration in rice and tea by ICP -MS and mix acid and microwave dige stion of sample. The digestive condition,detection method and instrument operation parameters were optimized and discussed. National standard substance sample,rice and tea were detected by this method.The results showed that accuracy of method was found from 90% to 110%,RSD<5%,detection limit of instrument was 50~70 ng/kg,and the d... |
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| Keywords: | ICP -MS rice tea trace rare earth elements standard substance |
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