摘要
本文通过X-射线衍射分析(XRD),扫描电子显微镜分析(SEM),化学分析光电子能谱分析(ESCA),并结合原子吸收测量,研究了钒在普通石墨管中石磨探针表面上发生的固相化学反应。结果表明,钒化合物在灰化阶段即可转化为热稳定性较高的碳化物,原子化的最后步骤为碳化物的热分解。
The atomization mechanism of Vanadium on the graphite probe surface in graphic furnace has been investigated, using X-ray diffraction spectrometry (XRD), scanning electron micrography (SEM), and electron spectroscopy for chemical analysis (ESCA), as well as atomic absorption measurement. During the charring period, species of vanadium can be changed into stable carbide on the probe surface, and then, which will decompose into free atoms of vanadium and carbon at relatively high temperature.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1992年第3期83-88,共6页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金~~
关键词
原子化机理
石墨探针
钒
Mechanism of atomization, Graphite probe, Vanadium
