| 微波溶样ICP—MS法测定小麦的粒,茎,穗和叶中15种痕量稀土元素 |
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| 引用本文： | 刘明 刘虎生. 微波溶样ICP—MS法测定小麦的粒,茎,穗和叶中15种痕量稀土元素[J]. 质谱学报, 1998, 19(3): 1-5 |
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| 作者姓名： | 刘明 刘虎生 |
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| 作者单位： | 北京医科大学公共卫生学院中心仪器室!北京，100083，北京医科大学公共卫生学院中心仪器室!北京，100083，北京医科大学公共卫生学院中心仪器室!北京，100083，北京医科大学公共卫生学院中心仪器室!北京，100083，北京医科大学公共卫生学院中心仪器室!北京，100083 |
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| 摘 要： | 本工作采用HNO3＋H2O2微波溶样，ICP－MS直接测定小麦的粒、茎、穗和叶中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。选用Re作内标可补偿基体效应。方法检出限为65－24．0pg／ml，麦粒的加标回收率为95％－104％，RSD为2.1％－3．9％。方法快速、灵敏、准确。
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| 关 键 词： | 小麦 微波溶样 ICP－MS 痕量稀土元素 |
Determination of 15 Trace Rare Earth Elements in Wheat by Microwave Digestion ICP-MS |
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| Liu Ming,Liu Husheng,Wang Naifen,Wang Xiaoyan,Zhang Jing. Determination of 15 Trace Rare Earth Elements in Wheat by Microwave Digestion ICP-MS[J]. Journal of Chinese Mass Spectrometry Society, 1998, 19(3): 1-5 |
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| Authors: | Liu Ming Liu Husheng Wang Naifen Wang Xiaoyan Zhang Jing |
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| Abstract: | An ICP-MS method for direcd determination of 15 trace rare earth elements in wheat was developed. Rapid and Complete dissolution of wheat was achieved by microwave digestion procedure with Concentrated nitric acid and hydrogen peroxide. The detection limits are 6. 5pg/ml-24. 0 pg/ml,the recoveries for spiking samples are 95% -104%,RSD are 2. 1%-3.9%. This method is rapid,sensitive and accurate. |
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| Keywords: | wheat microwave digestion ICP-MS trace rare earth elements |
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