| 预富集-氢化物发生原子吸收光谱法测定饮料中的痕量铅 |
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| 引用本文： | 陈学泽,梁静.预富集-氢化物发生原子吸收光谱法测定饮料中的痕量铅[J].分析测试学报,2006,25(5):118-120. |
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| 作者姓名： | 陈学泽 梁静 |
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| 作者单位： | 中南林学院,应用化学研究所,湖南,株洲,412006 |
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| 基金项目： | 致谢：承蒙日本国立九州大学教授江頭和彦先生提供部分实验用品,谨在此表示感谢. |
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| 摘 要： | 原子吸收光谱法测定水样中的痕量元素是应用得最广泛的方法之一1]。有时需采用多种方法对水样中的痕量元素进行富集。其中一类方法是基于待测元素配合物可以最终定量富集于少量颗粒上,过滤收集这些颗粒,然后制成小体积的、可直接用原子吸收光谱法测定的悬浊液。特定的配位剂分
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| 关 键 词： | 铅 氧化铝 饮料 预富集 氢化物发生 原子吸收光谱法 |
| 文章编号： | 1004-4957（2006）05-0118-03 |
| 收稿时间： | 2005-08-22 |
| 修稿时间： | 2006-03-09 |
Determination of Trace Lead in Beverages by Hydride Generation-Atomic Absorption Spectrometry after Enrichment |
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| CHEN Xue-ze,LIANG Jing.Determination of Trace Lead in Beverages by Hydride Generation-Atomic Absorption Spectrometry after Enrichment[J].Journal of Instrumental Analysis,2006,25(5):118-120. |
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| Authors: | CHEN Xue-ze LIANG Jing |
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| Institution: | Research Institute of Applied Chemistry, Central -South Forestry University, Zhuzhou 412006, China |
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| Abstract: | A novel method was developed for the determination of trace lead in beverages by hydride generation-atomic absorption spectrometry(HG-AAS).The complex,formed by lead with APDC,was trapped into the aluminium oxide on a membrane filter.After filtering,the aluminium oxide was washed out with 0.1 mol/L HCl.The aluminium oxide slurry was then analysed by HG-AAS.The characteristic mass of Pb was 0.01 ng/1%.The relative standard deviation range was 4.0%-7.0%(n=6),and the recovery of Maidong and Tianbao beverage were 98%,104%.The results obtained were satisfactory. |
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| Keywords: | Lead Aluminium oxide Beverage Enrichment Hydride generation Atomic absorption spectrometry |
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