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ICP-AES法测定茶叶、茶水中的矿物质和微量元素
引用本文:韩立新,李冉. ICP-AES法测定茶叶、茶水中的矿物质和微量元素[J]. 光谱学与光谱分析, 2002, 22(2): 304-306
作者姓名:韩立新  李冉
作者单位:北京大学化学与分子工程学院,北京,100871
摘    要:本文用电感耦合等离子体原子发射光谱法(ICP-AES)对不同品种,不同等级及不同产地的茶叶、茶水样品中的一些人体所必需的矿物质和微量元素进行了定量测定。结果表明,该方法简便,可靠,具有良好的精密度和准确度,本研究将对茶叶中一些矿物质和微量元素的鉴定以及在饮茶爱好者的合理购茶、饮茶等方面提供一些有用的信息。

关 键 词:ICP-AES 测定 茶叶 矿物质 微量元素 茶水
文章编号:1000-0593(2002)02-0304-03
修稿时间:2000-11-29

Determination of Minerals and Trace Elements in Various Teaby ICP-AES
HAN Li xin,LI Ran College of Chemistry and Molecular Engineering,Peking University,Beijing ,China. Determination of Minerals and Trace Elements in Various Teaby ICP-AES[J]. Spectroscopy and Spectral Analysis, 2002, 22(2): 304-306
Authors:HAN Li xin  LI Ran College of Chemistry  Molecular Engineering  Peking University  Beijing   China
Affiliation:HAN Li xin,LI Ran College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China
Abstract:It is known that some minerals and trace elements,such as K,Ca,Mg,Mn,P,Zn,Fe and Pb are the necessary elements in human body.The lack of these elements can cause various diseases.Because tea contains all kinds of minerals and trace elements,drinking tea is healthy for people.In order to contrast tea of different sort,grade and producing area,the minerals and trace elements in the tea have been determined using inductively coupled plasma atomic emission spectrometry (ICP AES) technique. The experimental results show that the measuring method is simple, reliable and accurate.Furthermore,it has been seen from the results that the content of the minerals and trace elements in tea is only dependent on the sort of the tea,which indeed does not connect directly with the grade of the tea.The content of the elements dissolved in water is determined by the existing form of the elements in tea.The study will be valuable in the appraisal of the minerals and trace elements in various tea,and be helpful for people who like drinking tea.
Keywords:ICP AES  Tea  Minerals  Trace elements
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