高等学校化学学报 ›› 1981, Vol. 2 ›› Issue (3): 294.

• 论文 • 上一篇    下一篇

相对峰吸收法测定几种元素在乙炔-空气火焰中的原子化度

郑衍生   

  1. 吉林大学化学系
  • 收稿日期:1980-07-09 出版日期:1981-08-24 发布日期:1981-08-24

DETERMINATION OF THE DEGREE OF ATOMIZATION IN AIR-ACETYLENE FLAME USING RELATIVE PEAK ABSORPTION TECHNIQUE

Zheng Yansheng   

  1. Department of Chemistry, Jilin University, Changchun
  • Received:1980-07-09 Online:1981-08-24 Published:1981-08-24

摘要: 本文提出以相对峰吸收法测定元素在乙炔-空气火焰中的原子化度,并讨论了方法的理论基础。采用Cu作参考元素,测定了Na、Mg、Cr和Mo等元素在乙炔-空气火焰中的原子化度。另外,还研究了火焰组成和测量高度对四种元素的吸光度的影响,以及对Na和Mg的原子化度的影响。实验表明,这两个因素对原子化度都有影响,而火焰组成的影响较大。所以,原子化度是一个相对的数值,它与测量条件有密切关系。

Abstract: In this article the relative peak absorption technique for the determination of degree of atomization in air-acetylene flame was proposed and its theoretical basis was disccussed as well.The degree of atomization of Na, Mg,Cr and Mo in air-acetylene flame was measured with Cu as a reference element. The effect of the flame composition and height on absorbance for four elements and the degree of atomization of Na and Mg were investigated. It was shown that both of these two factors can influence the degree of atomization, but the influence of flame composition is larger than that of its height. Therefore, the degree of atomization is a relative value which varies with the condition of measurement.

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