| ICP-MS法测定茶叶及其浸泡液中稀土总量 |
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| 引用本文： | 梁永利,张立锋,李建亭,张翼明,金文莉.ICP-MS法测定茶叶及其浸泡液中稀土总量[J].分析仪器,2014(5):62-66. |
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| 作者姓名： | 梁永利 张立锋 李建亭 张翼明 金文莉 |
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| 作者单位： | 1. 包头轻工职业技术学院,包头,014035
2. 包头稀土研究院,包头,014030 |
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| 基金项目： | 包头市科技局项目，编号2012S2005-3-3。 |
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| 摘 要： | 本文利用微波消解处理样品,采用ICP-MS法测定茶叶及其浸泡液中稀土的含量。通过实验对消解条件及ICP-MS测定条件进行优化选择。检测限为：0.0011~0.0037ng/mL,测定下限：0.0043~0.012ng/mL,回收率：96%~103%;RSD：1.4%~4.4%。茶叶浸泡2h后溶液中稀土总量已经达到平衡,浸泡液中稀土总量远低于茶叶中稀土总量。
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| 关 键 词： | 微波消解 ICP-MS 茶叶 稀土总量 |
Determination of total content of rare earth in tea and its soaking solution by inductively coupled plasma mass spectrometry |
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| LiangYongli,ZhangLifeng
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Li Jianting,ZhangYiming
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JinWenli.Determination of total content of rare earth in tea and its soaking solution by inductively coupled plasma mass spectrometry[J].Analytical Instrumentation,2014(5):62-66. |
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| Authors: | LiangYongli ZhangLifeng Li Jianting ZhangYiming JinWenli |
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| Affiliation: | Liang Yongli,Zhang Lifeng,Li Jianting,Zhang Yiming,Jin Wenli ( 1. Baotou Light Industry Vocational College, Baotou 014035, China ; 2. Baotou Research Institute of Rare Earth, Baotou 014030, China) |
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| Abstract: | In this paper,the sample was dissolved using microwave digestion,determination of total content of rare earth in tea and its soaking solution by inductively coupled plasma mass spectrometry.The detection limit was 0.0011ng/mL-0.0037ng/mL,the quantification limit was 0.0043ng/mL-0.012ng/mL;the recovery was 96%-103%and RSD was 1.4%-4.4%.After the tea soaked 2h,the total content of rare earth in the solution reached equilibrium,which was far less than the tea. |
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| Keywords: | microwave dissolution ICP - MS tea total content of rare earth |
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