| 原子荧光法测定干酵母中微量砷和汞 |
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| 引用本文： | 杨小丽,邵鑫,李小丹,程先忠. 原子荧光法测定干酵母中微量砷和汞[J]. 光谱实验室, 2005, 22(2): 350-353 |
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| 作者姓名： | 杨小丽 邵鑫 李小丹 程先忠 |
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| 作者单位： | 宜昌地质矿产研究所,湖北省宜昌市,443003;宜昌地质矿产研究所,湖北省宜昌市,443003;宜昌地质矿产研究所,湖北省宜昌市,443003;宜昌地质矿产研究所,湖北省宜昌市,443003 |
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| 摘 要： | 氢化物 -原子荧光测定干酵母中微量的砷和汞 ,探讨了样品的消解条件 ,仪器工作参数 ,硼氢化钾浓度对测定的影响。该方法简便快速、结果准确、重现性好。加标回收率 As:98.99%,Hg:98.32 %。相对标准偏差 As:0 .1 1 %,Hg:0 .0 3%。
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| 关 键 词： | 原子荧光光谱法 干酵母 砷 汞 |
| 文章编号： | 1004-8138(2005)02-0350-04 |
| 修稿时间： | 2004-10-21 |
Determination As and Hg in dry Yeast Powder by Atomic Fluorescence Spectrometry |
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| YANG Xiao-Li,SHAO Xin,LI Xiao-Dan,CHENG Xian-Zhong. Determination As and Hg in dry Yeast Powder by Atomic Fluorescence Spectrometry[J]. Chinese Journal of Spectroscopy Laboratory, 2005, 22(2): 350-353 |
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| Authors: | YANG Xiao-Li SHAO Xin LI Xiao-Dan CHENG Xian-Zhong |
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| Abstract: | The amounts of As and Hg in the dry yeast powder were determined by hydride generation-atomic fluorescence spectrometry.The degestion condition,the apparatus parameters,KBH_4 content were optimized. The method is simple and rapid with satisfactory results and good reproducibility.The average recovery rates are 98.99%,and 98.32% for As and Hg with the relative standard deviations of 0.11%,and 0.03%,respectively. |
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| Keywords: | AFS Dry Yeast Arsenic Mercury. |
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