| 氢化物发生原子荧光结合计算法测定大气颗粒物中砷的形态 |
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| 引用本文： | 梁淑轩,吴虹,孙汉文.氢化物发生原子荧光结合计算法测定大气颗粒物中砷的形态[J].分析试验室,2012(8):86-89. |
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| 作者姓名： | 梁淑轩 吴虹 孙汉文 |
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| 作者单位： | 河北大学化学与环境科学学院,河北省分析科学技术重点实验室 |
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| 摘 要： | 运用碱式消解法对样品进行前处理,采用氢化物发生-原子荧光光谱数学计算法测定大气颗粒物中As(Ⅲ)和As(Ⅴ)的含量。探讨了还原剂用量、酸介质及其酸度、载气及屏蔽气流量和观测高度等对荧光强度的影响,分析了共存离子对砷测定的干扰。在选定的最佳条件下,得到检出限为0.34μg/L,加标回收率为87.8%～108.2%。方法可用于测定大气颗粒物中不同形态的砷。
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| 关 键 词： | 砷(As) 氢化物发生-原子荧光光谱法 数学计算法 碱式消解法 大气颗粒物 形态分析 |
Speciation analysis of As by hydride generation-atomic fluorescence spectrometry combined with calculation method |
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| LIANG Shu-xuan,WU Hong and SUN Han-wen.Speciation analysis of As by hydride generation-atomic fluorescence spectrometry combined with calculation method[J].Chinese Journal of Analysis Laboratory,2012(8):86-89. |
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| Authors: | LIANG Shu-xuan WU Hong and SUN Han-wen |
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| Institution: | (College of Chemistry and Environmental Science,Hebei University;Key Laboratory of Analytical Science and Technology of Hebei Province,Baoding 071002) |
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| Abstract: | A method of alkali fusion followed by hydride generation-atomic fluorescence spectrometry combined with calculation method for the determination of As species was established.The experimental conditions that influence the fluorescence intensity were investigated and optimized.The interference of foreign ions and were also studied.The detection limit of As was 0.34 μg/L,and the spike recoveries were range of 87.81%～108.19 %.The proposed method was applied to the determination of atmospheric particulates. |
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| Keywords: | As Hydride generation-atomic fluorescence spectrometry Calculation method Alkali fusion Atmospheric particulates Speciation analysis |
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