| 氢化物—原子荧光光谱法测定保健食品中痕量锗 |
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| 引用本文： | 宋伟明,倪刚,胡奇林,全晓塞.氢化物—原子荧光光谱法测定保健食品中痕量锗[J].宁夏大学学报(自然科学版),2001,22(1):54-56. |
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| 作者姓名： | 宋伟明 倪刚 胡奇林 全晓塞 |
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| 作者单位： | 宁夏大学,化学科学与工程系, |
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| 基金项目： | 宁夏大学科技开发基金资助项目! (0 0 310 6 ) |
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| 摘 要： | 提出了以氢化物-原子荧光光谱法测定保健食品中锗的新方法，研究了酸介质、氢化物发生、增敏掩蔽剂等因素对测定的影响，并选择出仪器的最佳工作条件；采用磷酸-酒石酸介质进行测定，不但可有效消除共存离子的干扰，而且起到增敏作用，方法的检出限为6.2ng/g，相对标准偏差（RSD）为5%以内，加标回收率为95%-105%，结果令人满意。
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| 关 键 词： | 氢化物－原子荧光光谱法 保健食品 锗 含量测定 酸介质 增敏掩蔽剂 加标回收率 |
| 文章编号： | 0253-2328(2001)01-0054-03 |
| 修稿时间： | 2000年12月6日 |
Determination of trace germanium in health protection food by hydride generation atomic fluorescence spectrometry |
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| Song Wei-ming,NI Gang,HU Qi-lin,QUAN Xiao-sai.Determination of trace germanium in health protection food by hydride generation atomic fluorescence spectrometry[J].Journal of Ningxia University(Natural Science Edition),2001,22(1):54-56. |
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| Authors: | Song Wei-ming NI Gang HU Qi-lin QUAN Xiao-sai |
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| Abstract: | A new method was introduced for the determination of trace germanium by hydride generation atomic fluorescence spectrometry(HGAFS).The effect of the medium amounts of acid, action of hydride and screening agent of the determination of germanium was investigated. The operating condition of the instrument was optimized. The interference from foreign ions was eliminated by adding phosphoric acid and tartaric acid. This method was applied to the determination of germanium in some health protection and nourishing food. The detection limit (3δ) is 6.2 ng/g with a RSD of 5% .The recovery of standard addition is in 95%～105%. |
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| Keywords: | hydride generation atomic fluorescence spectrometry germanium health protection food |
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