高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (7): 780.

• 研究简报 • 上一篇    下一篇

元素在石墨炉内石墨探针表面上的原子化机理研究(Ⅰ)——镉与铝的原子化机理

邓勃1, 罗燕飞2   

  1. 1. 清华大学化学系;
    2. 江汉石油学院应化系
  • 收稿日期:1988-12-15 出版日期:1990-07-24 发布日期:1990-07-24
  • 通讯作者: 邓勃
  • 基金资助:

    国家自然科学基金

Studies on the Atomization Mechanism of Elements on the Graphite Probe Surface in the Graphite Furnace——The Atomization Mechanism of Cadmium and Aluminium

Deng Bo1, Luo Yanfei2   

  1. 1. Department of Chemistry, Tsinghua University, Beijing;
    2. Department of Applied Chemistry, Jianghm Petroleum College, Wuhan
  • Received:1988-12-15 Online:1990-07-24 Published:1990-07-24

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摘要： 自1978年B.V.L′vov[1]提出石墨炉内探针原子化技术以来,许多作者对该技术进行了研究,并将其应用于实际样品的测定,国内亦有人作过系统的评述[2,3],但对元素在石墨探针表面上的原子化机理却报道不多。本文应用X射线衍射分析与其它一些实验,观察和研究了镉和铝在石墨探针表面上原子化过程中的形态变化,阐明了镉和铝的原子化历程。

关键词: 原子化, 石墨探针, 镉铝

Abstract: The atomization mechinism of cadmium and aluminium on the graphite probe surface in the graphite furnace is studied. The result shows that the atomization of cadmium and aluminium on the graphite probe surface originates from the thermolysis of their monooxides. The appearance temperature of Cd and Al is identical with the thermolysis temperature of their oxides respectively. The active energy of atomization is related to the bond energy of M-O of their oxide.

Key words: Atomization, Graphite probe, Cadmium, Aluminium

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