摘要
本文研究了钴化合物在普通石墨管中石墨探针表面上的原子化过程。X-射线衍射分析,扫描电子显微镜分析,X-射线光电子能谱分析与原子吸收光谱测量的结果表明,硫酸钴首先转化为氧化钴,后者再在石墨探针表面被碳还原生成气态钴原子。
The mechanism of atomization for cobalt sulfate on the graphite probe surface in graphite furnace has been studied by using X-ray diffraction(XRD) spectrometry,scanning electron micrography (SEM), X-ray photoelectron spectroscopy (XPS), as well as graphite furnace atomic absorption spectrometry. It is shown that cobalt sulfate can be changed into oxide during its charring period, the atomic vapor is produced due to reduction of oxide by carbon on the probe surface.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第12期1358-1362,共5页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金
关键词
石墨探针
钴
原子化机理
Mechanism of atomization, Graphite probe, Cobalt
