| ICP-MS法测定茶叶中铅、铬、镉、砷、铜等重金属元素 |
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| 引用本文： | 陈红梅,张滨.ICP-MS法测定茶叶中铅、铬、镉、砷、铜等重金属元素[J].食品安全质量检测技术,2011,2(4):193-197. |
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| 作者姓名： | 陈红梅 张滨 |
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| 作者单位： | 长沙环境保护职业技术学院环境科学系;长沙环境保护职业技术学院环境科学系 |
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| 摘 要： | 本文采用微波消解方法处理茶叶样品后,用ICP-MS法测定茶叶中铅、铬、镉、砷、铜等重金属元素的含量。通过优化ICP-MS仪器测定条件,用内标克服仪器信号漂移及样品基体效应的影响,建立了ICP-MS法同时测定茶叶中多种元素。测定茶叶标准物质GBW10016表明,各元素结果与标准值一致。该法可以同时测定茶叶中多种重金属元素,且简便快速,精密度和准确度都较好。
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| 关 键 词： | 茶叶 ICP-MS 重金属 微波消解 |
Determination of Lead,Chromium,Cadmium,Arsenic,Copper and other heavy metals in tea by ICP-MS |
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| Chen Hongmei and Zhang Bin.Determination of Lead,Chromium,Cadmium,Arsenic,Copper and other heavy metals in tea by ICP-MS[J].Food Safety and Quality Detection Technology,2011,2(4):193-197. |
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| Authors: | Chen Hongmei and Zhang Bin |
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| Affiliation: | Department of Environment Science,Changsha Environment Protection Vocation Technique College,Changsha 410004,China;Department of Environment Science,Changsha Environment Protection Vocation Technique College,Changsha 410004,China |
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| Abstract: | In this paper,microwave digestion approach to tea samples,with the tea leaves by ICP-MS determination of lead,chromium,cadmium,arsenic,copper and other Heavy metal content.By optimizing the conditions for ICP-MS instrument measured using an internal standard to overcome the instrument drift and sample matrix effects,the establishment of the ICP-MS method for simultaneous determination of many elements in tea.Determination of tea reference material GBW 10016 showed that all elements of the same results with standard values.The method can also measure a variety of Heavy metal in tea,and simple and fast,precision and accuracy are better. |
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