| 微波消解-ICP-MS法同时测定罗汉果中的铅和砷 |
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| 引用本文： | 俞建国. 微波消解-ICP-MS法同时测定罗汉果中的铅和砷[J]. 广州化工, 2012, 40(20): 87-88,131 |
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| 作者姓名： | 俞建国 |
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| 作者单位： | 中国地质科学院岩溶地质研究所,国土资源部岩溶动力学重点实验室,广西桂林541004 |
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| 基金项目： | 国土资源部地质大调查项目—西南地区岩溶地下水污染调查评价 |
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| 摘 要： | 罗汉果样品经加HNO3后利用微波消解进行前处理,采用电感耦合等离子体质谱法(ICP-MS)直接测定试液中的Pb和As,并对ICP-MS工作参数进行了优化和选择。为校正响应信号的变化及消除基体效应和仪器漂移的影响,仪器分析过程中选用Rh做内标溶液。方法测定Pb和As具有良好的线性关系,检出限低(<0.05μg/g),并且标准加入回收率在95%～105%之间。
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| 关 键 词： | 微波消解 电感耦合等离子体质谱(ICP-MS) 罗汉果 铅 砷 |
Determination of Pb and As in Siraitia Grosvenorii by Microwave Digestion and ICP-MS |
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| YU Jian-guo. Determination of Pb and As in Siraitia Grosvenorii by Microwave Digestion and ICP-MS[J]. GuangZhou Chemical Industry and Technology, 2012, 40(20): 87-88,131 |
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| Authors: | YU Jian-guo |
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| Affiliation: | YU Jian-guo(Institute of Karst Geology,Chinese Academy of Geological Sciences,Karst Dynanics Laboratory, Ministry of Land and Resources,Guangxi Guilin 541004,China) |
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| Abstract: | The Siraitia Grosvenorii samples were digested with HNO3 by microwave technology,and the sample solutions were determined by Inductively Coupled Plasma Mass Spectrometry（ICP-MS） directly.In order to get rid of the matrix effect and instrument drift effectively,Rh solution was selected as internal standard solution during the analysis process.This method held well linear relationship.The detection limit was less than 0.05 μg/g and the recovery was between 95%~105%. |
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| Keywords: | Microwave Digestion Inductively Coupled Plasma Mass Spectrometry(ICP-MS) Siraitia Grosvenorii Pb As |
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