高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (12): 1517.

• 论文 • 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(X)——硝酸锶的原子化机理

邓勃, 刘强   

  1. 清华大学化学系, 北京, 100084
  • 收稿日期:1991-12-07 修回日期:1992-04-23 出版日期:1992-12-24 发布日期:1992-12-24
  • 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(Ⅹ)——The Atomization Mechanism of Strontium Nitrate

DENG Bo, LIU Qiang   

  1. Department of Chemistry, Tsinghua University, Beijing, 100084
  • Received:1991-12-07 Revised:1992-04-23 Online:1992-12-24 Published:1992-12-24

摘要: 用X射线衍射、X射线光电子能谱、俄歇电子能谱和扫描电子显微术等考察了石墨炉升温过程中Sr(NO3)2在石墨探针表面上的形态变化,阐明了它的原子化机理.加热过程中Sr(NO3)2首先分解为SrO(s),再还原为SrC2,后者进一步分解为Sr(s).锶的原子化源于金属蒸发.

关键词: 石墨探针, 锶, 原子化机理

Abstract: The objective of this study is to investigate the atomization mechanism of Sr(NO3)2 on the graphite surface by probe atomization combined with other instrumental methods.The atomization mechanism of Sr(NO3)2(s)was proposed,in which Sr(NO3)2 was decomposed into SrO(s)at first during heating then SrO(s)was converted into SrC2(s)and further into Sr(s).The atomization of strontium originates from vaporization of metal.

Key words: Graphite probe, Strontium, Atomization mechanism

TrendMD: