| 氢化物发生-原子吸收光谱法测定食品中硒 |
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| 引用本文： | 李敏,李筱薇,高俊全. 氢化物发生-原子吸收光谱法测定食品中硒[J]. 卫生研究, 2006, 35(1): 95-97 |
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| 作者姓名： | 李敏 李筱薇 高俊全 |
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| 作者单位： | 中国疾病预防控制中心营养与食品安全所,北京,100050 |
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| 摘 要： | 目的研究氢化物发生原子吸收光谱法测定食品中硒的分析技术和最佳分析条件。方法采用硝酸高氯酸消解样品,硼氢化钠为还原剂,在6molL盐酸介质中测定。结果相对标准偏差(RSD)1.34%～3.81%,回收率为92.05%～103.88%,最低检出限为0.0056mgkg(0.28ngml),线性范围为0～80.0μgL。结论该方法简便快速、灵敏度高、干扰少,可以满足食品中硒的测定。
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| 关 键 词： | 氢化物发生原子吸收光谱法 食品 硒 |
| 文章编号： | 1000-8020（2006）01-0095-03 |
| 收稿时间： | 2005-02-25 |
| 修稿时间： | 2005-02-25 |
Determination of selenium in selenium-enriched foods by hydride generation atomic absorption spectrometry |
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| Li Min,Li Xiao-wei,Gao Jun-quan. Determination of selenium in selenium-enriched foods by hydride generation atomic absorption spectrometry[J]. Journal of hygiene research, 2006, 35(1): 95-97 |
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| Authors: | Li Min Li Xiao-wei Gao Jun-quan |
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| Affiliation: | National Institute for Nutrition and Food Safety, Chinese Center for Disease Prevention and Control, Beijing 100050, China |
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| Abstract: | OBJECTIVE: To determine selenium (Se) in selenium-enriched foods by hydride generation atomic absorption spectrometry. METHODS: The samples were digested by HNO3-HCLO4 and reduced by NaHB4, and then was determined in 6 mol/L HCL. RESULTS: The results showed that the detectable range, detection limit, recovery rate, and the relative standard deviation(RSD) of the method were 0 - 80.0 microg/L, 0.0056 mg/kg, 92.05% - 103.88%, and 1.34% - 3.81% respectively. CONCLUSION: This method is suitable for selenium determination. |
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| Keywords: | hydride generation atomic absorption spectrometry foodstuff selenium |
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