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| 氢化物发生-原子荧光光谱测定反应香精中的砷和汞 | |
| 引用本文： | 武晓剑,李琼,费玠,王丽芳.氢化物发生-原子荧光光谱测定反应香精中的砷和汞[J].分析科学学报,2008,24(5). |
| 作者姓名： | 武晓剑 李琼 费玠 王丽芳 |
| 作者单位： | 1. 上海应用技术学院,上海,200235;上海水产大学,上海,200090 2. 上海应用技术学院,上海,200235;上海香料研究所,上海,200232 3. 上海香料研究所,上海,200232 4. 东华大学,上海,201620 |
| 摘 要： | 建立了用氢化物发生-原子荧光光谱法连续测定反应香精中的汞和砷.考察了样品前处理方法和仪器参数对实验结果的影响.实验确定反应香精样品的微波消解试剂为硝酸:过氧化氢=6:2(V/V)、最高消解温度为210℃、消解时间为25 min为最佳前处理条件;原子荧光的还原剂为20 g/L硼氢化钾,载流液为5%盐酸.方法测定汞的回收率为99.2%～110.O%,砷的回收率为96.5%～113.1%.在最优化的条件下对9种反应香精样品进行测定,其中砷和汞的含量均未超过国家标准. |
| 关 键 词： | 氢化物发生-原子荧光光谱 反应香精 汞 砷 |
Determination of Arsenic and Mercury by Hydride Generation-Atomic Fluorescence Spectrmetry in Process Flavoring |
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| WU Xiao-jian,LI Qiong,FEI Jie,WANG Li-fang.Determination of Arsenic and Mercury by Hydride Generation-Atomic Fluorescence Spectrmetry in Process Flavoring[J].Journal of Analytical Science,2008,24(5). | |
| Authors: | WU Xiao-jian LI Qiong FEI Jie WANG Li-fang |
| Abstract: | A method for the determination of the arsenic and mercury in process flavoring by hydride generation-atomic fluorescence spectrometry has been proposed,and the pre-treatment and detection conditions were investigated and optimized.Under the optimum conditions,the recoveries of As and Hg are ranged from 96.1%~113.1% and 99.2%~110.0%,respectively.Nine process flavoring were analyzed,and the results show that the concentrations of As and Hg are all under the maximum allowable contents of National Standard(GB). |
| Keywords: | Hydride generation-atomic fluorescence spectrometry Process flavoring Mercury Arsenic |
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