| 氢化物负压发生和真空无火焰原子化器的原子吸收光谱法测定铋 |
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| 引用本文： | 张宝贵,陶克毅,冯建兴.氢化物负压发生和真空无火焰原子化器的原子吸收光谱法测定铋[J].分析测试学报,1990(2). |
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| 作者姓名： | 张宝贵 陶克毅 冯建兴 |
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| 作者单位： | 南开大学环境科学系
(张宝贵，陶克毅)，南开大学环境科学系(冯建兴) |
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| 摘 要： | 在负压发生器中用1% NaBH_4将Bi(Ⅲ)还原为铋化氢后,向发生器中加入一定量的空气。用真空泵将铋化氢和空气的混合物同时吸入到真空电热石英管中,用原子吸收仪器测定。在原子化器内,加入空气中的氧与硼氢化钠分解产生的氢反应,生成水分子。因而消除了氢对测定铋的干扰。
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| 关 键 词： | 铋 无火焰原子吸收光谱法 氢化物发生 |
Determination of Bismuth by Atomic Absorption Spectroscopy Using Hydride Generation under Subatmospheric Pressure and Evacuated Flameless Atomizer |
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| Zhang Baogui,Tao Keyi,Feng Jianxing.Determination of Bismuth by Atomic Absorption Spectroscopy Using Hydride Generation under Subatmospheric Pressure and Evacuated Flameless Atomizer[J].Journal of Instrumental Analysis,1990(2). |
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| Authors: | Zhang Baogui Tao Keyi Feng Jianxing |
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| Institution: | Zhang Baogui,Tao Keyi,Feng Jianxing Department of Environmental Science,Nankai University |
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| Abstract: | A new method was developed for determination of bismuth by evacuated flameless atomicabsorption technique. A subatmospheric hydride generator was used to generate and collect thebismuth hydride. A certain amount of air was then added to the generator. The gaseousmixture of bismuth hydride and air was drawn into a evacuated, heated quartz tube. The detec-tion limit for Bi is 0.05ng. The RSD value of this method with ten measurements of 1.0 ngBi is 3.2%. |
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| Keywords: | Bismuth Flameless atomic absorption spectroscopy hydride generation |
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