Study of Fundamental Parameters of Inductively Coupled Plasma for Slurry Nebulization——Electron Density Determination
WANG Zheng1, 2, QIU De-ren2, TAO Guang-yi1, YANG Peng-yuan2*
1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China 2. Department of Chemistry, Fudan University, Shanghai 200433, China
Abstract：The electron density of the plasma for slurry nebulization inductively coupled plasma emission spectrometry was determined and reported in the present paper. The Stark broadening method of Hβ line (486.1 nm) was chosen and used to determine the electron density of the plasma for nebulization into the inductively coupled plasma with both the aqueous solution and different concentration titanium slurry. There are approximately the same plasma electron density results of 1015 cm-3 for the two nebulization ways. The experiment verified that the plasma electron density only shows a litter decrease with 10％ TiO2 suspension nebulization into the inductively coupled plasma. This means that the plasma electron density does not change remarkably with high content suspension nebulization into the inductively coupled plasma emission spectrometry instrument. It will help trace elements determination by using high concentration suspension nebulization into the inductively coupled plasma emission spectrometry instrument.
Key words：Slurry introduction;Inductively coupled plasma emission spectrometry;Plasma electron density
汪正1, 2,邱德仁2,陶光仪1,杨芃原2* . 悬浮液雾化进样感耦等离子体基本参数研究——Ⅱ等离子体电子密度测定[J]. 光谱学与光谱分析, 2009, 29(05): 1402-1404.
WANG Zheng1, 2, QIU De-ren2, TAO Guang-yi1, YANG Peng-yuan2* . Study of Fundamental Parameters of Inductively Coupled Plasma for Slurry Nebulization——Electron Density Determination. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(05): 1402-1404.
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