| 导数原子吸收光谱法直接测定水中痕量元素 |
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| 引用本文： | 王未肖,孙汉文.导数原子吸收光谱法直接测定水中痕量元素[J].理化检验(化学分册),2001,37(1):27-28,33. |
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| 作者姓名： | 王未肖 孙汉文 |
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| 作者单位： | 1. 河北科技大学环境科学与工程系,
2. 河北大学化学系 |
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| 摘 要： | 提出了导数原子吸收光谱法直接测定水中痕量元素的方法，它是基于测定导数原子吸收值，即吸光度随时间的变化率来提高原子吸收分析灵敏度的一种新技术。方法具有简单快速，灵敏度高，检出限低的优点，可直接用于水质的常规分析。
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| 关 键 词： | 导数原子吸收光谱法 水 痕量元素 测定 水质分析 |
| 文章编号： | 1001-4020(2001)01-0027-02 |
DIRECT DETERMINATION OF TRACE AMOUNTS OF METAL ELEMENTS IN WATER BY DERIVATIVE FAAS |
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| WANG Wei-xiao,SUN Han-wen.DIRECT DETERMINATION OF TRACE AMOUNTS OF METAL ELEMENTS IN WATER BY DERIVATIVE FAAS[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2001,37(1):27-28,33. |
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| Authors: | WANG Wei-xiao SUN Han-wen |
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| Abstract: | It is reported that by the use of the derivative atomic absorption spectrometry, the sensitivity of
determination of some of the metal elements (Cu、 Mn、 Fe、 Zn、 Cd、 Pb) can be remarkably improved. The opti
mum condition for the determination was studied thoroughly. The extents of the raising of sensitivities of the
above mentioned elements are found to be 20～50 times higher as compared with the conventional FAAS methods.
The limits of detection are also much lower, improved to the extent of 5 to 11 times. This method has been applied
to the analysis of water with recoveries in the range of 90.0%～110.0%. |
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| Keywords: | Derivative atomic absorption spectrometry Water samples Trace amounts of elements |
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