| 微波溶样ICP-MS直接测定茶叶中15种痕量稀土元素 |
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| 引用本文： | 刘虎生,王耐芬,王小燕,刘明.微波溶样ICP-MS直接测定茶叶中15种痕量稀土元素[J].分析科学学报,1997(1). |
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| 作者姓名： | 刘虎生 王耐芬 王小燕 刘明 |
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| 作者单位： | 北京医科大学公卫学院中心仪器室 |
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| 摘 要： | 本文报道用ＨＮＯ３－Ｈ２Ｏ２微波溶样，不经分离富集，用标准加入ＩＣＰ－ＭＳ法，直接测定茶叶中１５种痕量稀土元素．对微波溶样和等离子体质谱测定条件进行了优化选择．在最佳实验条件下，用本法测定了国家一级茶叶标准物质ＧＢＷ０７６０５中的单一稀土元素，测得值与标准值很好吻合
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| 关 键 词： | 微波溶样 茶叶 ICP－MS 痕量稀土元素 |
Determination of 15 Trace Rare Earth Elements in Tea by Microwave Acid Digestion ICP MS |
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| Liu Husheng,Wang Naifen,Wang Xiaoyan,Liu Ming.Determination of 15 Trace Rare Earth Elements in Tea by Microwave Acid Digestion ICP MS[J].Journal of Analytical Science,1997(1). |
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| Authors: | Liu Husheng Wang Naifen Wang Xiaoyan Liu Ming |
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| Abstract: | An addition calibration ICP MS method for direct determination of 15 trace rare earth elements in tea was developed. Rapid and complete dissolution of tea was achieved by a microwave digestion procedure with concentrated nitric acid and hydrogen peroxide. Addition calibration can effectively compensate the matrix effect. Fifteen trace rare earth elements in tea certified reference material (CRM) GBW 07605 were determined by the present method. The results are in good agreement with the certified values. |
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| Keywords: | Microwave acid digestion Tea ICP MS Trace rare earth elements |
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