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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Zeng, Xiaoyan Li, Changmao Li, Xiangyou Guo, Lianbo Lu, Yongfeng He, Xiangnan Shen, Meng Hao, Zhongqi |
| Copyright Year | 2014 |
| Abstract | In this study, the element dependence of spatial confinement effects in LIBS has been studied. Hemispheric cavities were used to confine laser-induced plasmas from aluminum samples with other trace elements. The enhancement factors were found to be dependent on the elements. Equations describing the element-dependent enhancement factors were successfully deduced from the local thermodynamic equilibrium conditions, which have also been verified by the experimental results. Research results show that enhancement factors in LIBS with spatial confinement depend on the temperature, electron density, and compression ratio of plasmas, and vary with elements and atomic/ionic emission lines selected. Generally, emission lines with higher upper level energies have higher enhancement factors. Furthermore, with enhancement factor of a spectral line, temperatures and electron densities of plasmas known, enhancement factors of all the other elements in the plasmas could be estimated by the equations developed in this study. |
| Starting Page | 638 |
| Ending Page | 643 |
| Page Count | 6 |
| File Format | HTM / HTML PDF |
| ISSN | 02679477 |
| Volume Number | 29 |
| Issue Number | 4 |
| Journal | Journal of Analytical Atomic Spectrometry |
| DOI | 10.1039/c3ja50368b |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Correlation and dependence Thermodynamic equilibrium Compression ratio |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Analytical Chemistry |
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