| 微波消解ICP-AES测定普洱茶中的17种元素 |
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| 引用本文： | 魏新军,南海娟,颜振敏,李波.微波消解ICP-AES测定普洱茶中的17种元素[J].光谱实验室,2011,28(6):3059-3061. |
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| 作者姓名： | 魏新军 南海娟 颜振敏 李波 |
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| 作者单位： | 河南科技学院食品学院 河南省新乡市华兰大道东段453003 |
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| 摘 要： | 优化了微波处理样品的条件,以电感耦合等离子体-原子发射光谱仪（ICP-AES）检测普洱茶中17种元素的含量。结果表明,普洱茶中元素含量高低顺序为：K〉Ca〉Mg〉Al〉Mn〉Na〉Fe〉Zn〉Ni〉Sr〉Cu〉Pb〉Cr〉Co〉Cd。As、Se没有检出,有害元素的含量均低于国家标准限量。ICP-AES检测各元素的相对标准偏差小于5%。
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| 关 键 词： | 微波消解 电感耦合等离子体-原子发射光谱法 常量和微量元素 普洱茶 |
Determination of 17 Kinds of Elements in Pu'er Tea by ICP-AES with Microwave Digestion |
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| WEI Xin-Jun,NAN Hai-Juan,YAN Zhen-Min,LI Bo.Determination of 17 Kinds of Elements in Pu'er Tea by ICP-AES with Microwave Digestion[J].Chinese Journal of Spectroscopy Laboratory,2011,28(6):3059-3061. |
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| Authors: | WEI Xin-Jun NAN Hai-Juan YAN Zhen-Min LI Bo |
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| Institution: | WEI Xin-Jun NAN Hai-Juan YAN Zhen-Min LI Bo(College of Food Science,Henan Institute of Science and Technology,Xinxiang,Henan 453003,P.R.China) |
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| Abstract: | The conditions of microwave digestion for treatment samples were optimized.The amounts of 17 kinds elements in the pu'er tea were determined by ICP-AES.The order of the elements contents in pu'er tea was:K>Ca>Mg>Al>Mn>Na>Fe>Zn>Ni>Sr>Cu>Pb>Cr>Co>Cd.As and Se were not found,and the contents of harmful elements were lower than the national standard limit.The determined RSD of all elements were less than 5% by ICP-AES. |
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| Keywords: | Microwave Digestion ICP-AES Constant and Trace Elements Pu'er Tea |
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