| GFAAS中理论原子化效率与原子化温度的关系的研究 |
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| 引用本文： | 李攻科,杨秀环,张展霞.GFAAS中理论原子化效率与原子化温度的关系的研究[J].光谱学与光谱分析,2000,20(1):76-78. |
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| 作者姓名： | 李攻科 杨秀环 张展霞 |
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| 作者单位： | 中山大学化学系,510275,广州 |
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| 摘 要： | 本文在有效地控制和消除基体干扰的基础上 ,探讨了Ag ,As,Au ,Bi,Cd ,Co ,Cr,Cu ,Fe ,Ga,Hg ,Mn ,Mo ,Ni,Sb ,Pb和V元素的理论原子化效率与原子化温度的关系。研究表明 :元素的理论原子化效率是原子化温度的函数 ,在一定的原子化温度范围内 ,理论原子化效率与原子化温度呈线性递增关系 ,对研究的十八个元素其线性的相关系数在 0 994 0～ 0 9993之间 ,且斜率大部分在 0 0 6～ 0 0 7之间 ,说明在一定的原子化温度范围内 ,理论原子化效率随原子化温度变化的斜率是相近的。
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| 关 键 词： | 原子吸收光谱法 原子化温度 原子化效率 |
| 修稿时间： | 1999年3月11日 |
Ralation between Theoretical Atomization Efficiency and Atomization Temperature in GFAAS |
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| Gongke LI,Xiuhuan YANG,Zhanxia ZHANG.Ralation between Theoretical Atomization Efficiency and Atomization Temperature in GFAAS[J].Spectroscopy and Spectral Analysis,2000,20(1):76-78. |
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| Authors: | Gongke LI Xiuhuan YANG Zhanxia ZHANG |
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| Institution: | Department of Chemistry, Zhongshan University, 510275 Guangzhou. |
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| Abstract: | In this work, the relationship between the theoretical atomization efficiencies (EA') and atomization temperature (T) in graphite furnace atomic absorption spectrometry (GFAAS) for 18 elements were studied in detail. The results showed that a linear relationship between the EA' and the atomization temperature existed at a definite atomization temperature range. The correlation coefficient was within 0.9940-0.9993 for 18 elements. The slope was in the range of 0.06-0.07. The theoretical atomization efficiency was about 65% for all elements at optimized atomization temperature. This indicated that some factors should be taken into account in the L'vov modified model of characteristic mass. |
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| Keywords: | Theoretical atomization efficiency Atomization temperature Graphite furnace atomic absorption spectrometry |
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