| 微波溶样—ICP／MS法测定稻中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法测定稻中15种痕量稀土元素[J].光谱学与光谱分析,1998,18(5):583-586. |
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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 |
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| 摘 要： | 本文报道采用ＨＮＯ３＋Ｈ２Ｏ２微波溶样，ＩＣＰ－ＭＳ直接测定稻中１５种稀土元素，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７．０－２５．８ｐｇ／ｍＬ，稻壳加标回收率为９５－１０５％，ＲＳＤ为２．３－４．２％，方法快速、灵敏、准确。
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| 关 键 词： | 稻 微波溶样 ICP MS 稀土元素 大米 |
DETERMINATION OF 15 TRACE RARE EARTH ELEMENTS IN RICE BY MICROWAVE DIGESTION ICP MS |
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| M Liu,H Liu,N Wang,X Wang.DETERMINATION OF 15 TRACE RARE EARTH ELEMENTS IN RICE BY MICROWAVE DIGESTION ICP MS[J].Spectroscopy and Spectral Analysis,1998,18(5):583-586. |
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| Authors: | M Liu H Liu N Wang X Wang |
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| Institution: | Public Health College, Beijing Medical University, 100083 Beijing. |
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| Abstract: | An ICP MS method for direct determination of 15 trace rare earth elements in rice was developed.Rapid and complete dissolution of rice was achieved by a microwave digestion procedure with concentrated nitric acid and hydrogen peroxide.The detection limits are 7 0-25 8pg/mL,the recoveries for spiked samples are 95-105%,RSDs are 2 3-4 2%.This method is rapid,sensitive and accurate. |
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| Keywords: | Rice Microwave digestion ICP MS Rare earth elements |
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