| ICP-MS法测定普洱茶中15种无机元素及应用 |
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| 引用本文： | 辛文锋,刘静,曹红斌,张慧,张文生.ICP-MS法测定普洱茶中15种无机元素及应用[J].北京师范大学学报(自然科学版),2010,46(1):92-96. |
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| 作者姓名： | 辛文锋 刘静 曹红斌 张慧 张文生 |
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| 作者单位： | 中药资源保护与利用北京市重点实验室,100875,北京;教育部资源药物工程研究中心,100875,北京;北京师范大学资源学院资源药物与中药资源研究所,100875,北京;北京师范大学化学学院,100875,北京 |
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| 基金项目： | 云南省普洱茶质量标准研究基金资助项目 |
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| 摘 要： | 应用微波消解处理样品,电感耦合等离子体质谱法(ICP-MS)测定,考察了来源于云南的普洱茶种植土壤、鲜叶、发酵前后茶叶产品等54个样品中的Pb、Cu、As、Cr、Hg、Cd、Zn、Fe、Se、Mn、K、Ca、Na、Al与Mg共15种元素的质量分数(w),并进行了元素聚类分析与相关性分析.研究结果表明普洱茶树对土壤中不同元素的富集能力存在较大差异,有益元素群与重金属元素群组间存在显著的负相关,实验表明准确测定茶叶中微量元素的含量及探讨元素内在相互关系对于评价茶叶品质安全及指导种植加工均有重要的意义.
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| 关 键 词： | 普洱茶 电感耦合等离子体质谱法 无机元素 相关性分析 |
DETERMINATION AND APPLICATION OF 15 INORGANIC ELEMENTS IN PUERH TEA BY ICP-MS |
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| XIN Wenfeng,LIU Jing,CAO Hongbin,ZHANG Hui,ZHANG Wensheng.DETERMINATION AND APPLICATION OF 15 INORGANIC ELEMENTS IN PUERH TEA BY ICP-MS[J].Journal of Beijing Normal University(Natural Science),2010,46(1):92-96. |
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| Authors: | XIN Wenfeng LIU Jing CAO Hongbin ZHANG Hui ZHANG Wensheng |
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| Abstract: | Fifty four samples were collected from Yunnan province,including soils,leaves of the Puerh tea trees,and the Puerh tea products before/after zymolysis.Samples were digested by microwave,and contents of 15 elements(Pb,Cu,As,Cr,Hg,Cd,Zn,Fe,Se,Mn,K,Ca,Na,Al,Mg) were determined by inductively coupled plasma mass spectrometry(ICP-MS).Cluster and correlation analysis were performed.Data revealed a large difference in enrichment ability from soil by Puerh tea trees of different elements.A significant negative corr... |
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| Keywords: | Puerh tea inductively coupled plasma mass spectrometry inorganic elements correlation analysis |
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