| HG-AFS测定高纯碲中痕量硒干扰的消除 |
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| 引用本文： | 马名扬,苏流坤.HG-AFS测定高纯碲中痕量硒干扰的消除[J].光谱学与光谱分析,2011,31(11):3123-3125. |
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| 作者姓名： | 马名扬 苏流坤 |
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| 作者单位： | 中国广州分析测试中心, 广东省分析测试技术公共实验室，广东 广州 510070 |
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| 基金项目： | 国家自然科学基金项目(20807012); 广东省自然科学基金项目(9151065003000010)资助 |
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| 摘 要： | 用HNO3+HCl分解样品，采用Fe3+-柠檬酸混合溶液作抑制剂，研究了下氢化物发生-原子荧光光谱法测定痕量硒时的干扰及其机理，探讨了NO-3和NO-2残留的影响，并用正交试验设计结合单因素试验研究了不同浓度Fe3+盐、盐酸、柠檬酸、硼氢化钾等条件下Se的回收率。该方法的检出限为0.15 μg·L-1，样品中Se含量为27.01 μg·L-1的相对标准偏差在3.1%～4.2%之间(n=11)，加标回收率为96.1%～102.3%。用于实际样品的测定，结果满意。
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| 关 键 词： | 高纯碲 硒 干扰及消除 原子荧光光谱 |
| 收稿时间： | 2010-09-04 |
Elimination of Interference in the Determination of Selenium in High Purity Tellurium by HG-AFS |
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| MA Ming-yang,SU Liu-kun.Elimination of Interference in the Determination of Selenium in High Purity Tellurium by HG-AFS[J].Spectroscopy and Spectral Analysis,2011,31(11):3123-3125. |
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| Authors: | MA Ming-yang SU Liu-kun |
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| Institution: | Guangdong Provincial Public Laboratory of Analysis and Testing Techdogy，China National Analytical Center, Guangzhou，Guangzhou 510070，China |
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| Abstract: | The samples were decomposed with HNO3+HCl,and Fe3+-citric acid mix solution was added to eliminate interferences.The elimination and mechanism of tellurium interference with selenium determination by HG-AFS were studied,and the residuary influence of NO-3 and NO-2 was investigated.The interference of ferric trichloride,hydrochloric acid,citric acid and PBH concentration with the fluorescence intensity of selenium was observed by the orthogonal test design combined with the mono-factor test.The detection lim... |
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| Keywords: | High purity tellurium Selenium Interference and elimination Atomic fluorescence spectrometry |
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