| 石墨炉内石墨探针表面上的原子化机理研究——Ⅷ 锡的原子化机理 |
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| 引用本文： | 王建平,邓勃.石墨炉内石墨探针表面上的原子化机理研究——Ⅷ 锡的原子化机理[J].分析测试学报,1992(2). |
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| 作者姓名： | 王建平 邓勃 |
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| 作者单位： | 清华大学化学系
(王建平)，清华大学化学系(邓勃) |
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| 摘 要： | 利用探针原子化技术,研究了在普通石墨管中锡化合物的原子化过程中所发生的化学反应,阐述了锡的原子化机理。结果表明,锡试样首先转化成为氧化物,氧化物发生石墨碳还原而生成气态原子。
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| 关 键 词： | 原子化机理 石墨探针 锡 |
Study on the Mechnism of Atomizaion for Tin Compound on the Graphite Probe Surface in Graphite Furnace |
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| Wang Jianping,Deng bo.Study on the Mechnism of Atomizaion for Tin Compound on the Graphite Probe Surface in Graphite Furnace[J].Journal of Instrumental Analysis,1992(2). |
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| Authors: | Wang Jianping Deng bo |
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| Institution: | Wang Jianping,Deng bo Department of Chemistry,Tsinghua University |
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| Abstract: | The change of chemical species in the atomization process of stannous chloride on the gra-
phite probe surface are determined by X-ray diffraction spectrometry (XRD) auger electron spe-
ctroscopy (AES), electron spectroscopy for chemical analysis (ESCA) and scanning electron
micrography (SEM). It is shown that when aqueous solution of SnCl_2 is heated on the graphite
probe, SnO_2 and SnO are formed at relatively low temperature. These oxides are then reduced
to metal Sn by carbon on the probe surface. The atomization mechanism for stannous chloride
during its heat treatment on probe surface in the graphite furnace are proposed. |
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| Keywords: | Chemical reaction Atomization Graphite probe Tin |
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