| 微波消解火焰原子吸收光谱法测定茶叶中的锌 |
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| 引用本文： | 秦青,李海霞.微波消解火焰原子吸收光谱法测定茶叶中的锌[J].四川环境,2007,26(1):46-48. |
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| 作者姓名： | 秦青 李海霞 |
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| 作者单位： | 四川省环境监测中心站,成都,610041 |
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| 摘 要： | 采用微波消解样品,用火焰原子吸收法直接测定茶叶中的锌含量。回收率85.98%~118.62%,相对标准偏差为1.7%。方法准确、操作简便,可实现同一样品的快速测定,且最大限度地减少了对测定的干扰。微波消解作为一种样品制备方法,在茶叶样品预处理方面,避免了传统湿法消解的限制,具有传统碱式干法消解与酸浸提法无法比拟的优点。
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| 关 键 词： | 微波消解 火焰原子吸收光谱法 茶叶 锌 |
| 文章编号： | 1001-3644（2007）01-0046-03 |
| 收稿时间： | 2006-10-19 |
| 修稿时间： | 2006年10月19 |
Determination of Zn in Teas by Microwave Digestion Atomic Absorption Spectrophotometry |
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| QING Qin,LI Hai-xia.Determination of Zn in Teas by Microwave Digestion Atomic Absorption Spectrophotometry[J].Sichuan Environment,2007,26(1):46-48. |
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| Authors: | QING Qin LI Hai-xia |
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| Institution: | Sichuan Environmental Monitoring Center, Chengdu 610041, China |
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| Abstract: | Tea samples were digested by microwave,and then zinc was determined by atomic absorption spectrophotometry.The results showed that the average recovery with standard addition mode was 85.98%~118.62%.The method is accurate,simple and rapid.The interference on determination was reduced to the greatest extent.As a novel method for sample(preparation),microwave digestion technique eliminated the disadvantages of traditional wet digestion to pretreat tea-leaf samples and had(advantages) that traditional alkali melting and acid digestion did not have. |
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| Keywords: | Microwave digestion atomic absorption spectrophotometry tea zinc |
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