摘要
本文应用探针技术结合X-射线衍射(XRD)、X-射线光电子能谱(XPS)及原子吸收测量等,考察了在石墨炉升温过程中石墨探针表面上锑的形态变化,阐明了氯化锑的原子化过程。XRD及XPS分析证实存在中间产物Sb_2O_4,因此,我们认为SbCl_3除了通过氯化物热分解实现原子化之外,在有氧存在的情况下,还存在另一种原子化方式,即经历中间产物Sb_2O_4而实现原子化。
In this paper, the chemical species of antimony on the graphite surface during heating were identified by X-ray diffraction spectro-metry(XRD) , X-ray photoelectron spectrojietry ( XPS ) and atomization mechanism of antimony chloride was interpreted.XRD and XPS analysis confirmed the presence of intermediate product Sb2O4 . Thus , we considered that there was another way of atomization for SbCl3 in the presence of oxygen as well, in which the atomization of antimony subjected to formation of intermediate product being antimony oxide besides for decomposition model of SbCl3.
基金
国家自然科学基金资助项目
关键词
原子化法
石墨探针
石墨炉
锑
antimony
atomization mechanism
graphite probe
graphi-te furnace atomic absorption spect rometry
