Knowledge Management System of Shenyang Institute of Automation, CAS
| Correction of self-absorption effect in calibration-free laser-induced breakdown spectroscopy by an internal reference method | |
Sun LX(孙兰香) ; Yu HB(于海斌)
| |
| Department | 工业信息学研究室 |
| Source Publication | Talanta
 |
| ISSN | 0039-9140 |
| 2009 | |
| Volume | 79Issue:2Pages:388-395 |
| Indexed By | SCI ; EI |
| EI Accession number | 20092612154067 |
| WOS ID | WOS:000268216900044 |
| Contribution Rank | 1 |
| Keyword | Libs Self-absorption Internal Reference Calibration-free Quantitative Analysis Boltzmann Plot |
| Abstract | A simplified procedure for correcting self-absorption effect was proposed in calibration-free laser-induced breakdown spectroscopy (CF-LIBS). In typical LIBS measurement conditions, the plasma produced is often optically thick, especially for the strong lines of major elements. The selection of self-absorption lines destroys the performance of CF-LIBS, and the familiar correction method based on the curve of growth is complex in implementation. The procedure we proposed, named internal reference for self-absorption correction (IRSAC), first chose an internal reference line for each species, then compared other spectral line intensity of the same species with the reference line to estimate the self-absorption degrees of other spectral lines, and finally achieved an optimal correction by a regressive algorithm. The self-absorption effect of the selected reference line can be ignored, since the reference line with high excitation energy of the upper level is slightly affected by the self-absorption. Through the IRSAC method, the points on the Boltzmann plot become more regular, and the evaluations of the plasma temperature and material composition are more accurate than the basic CF-LIBS. |
| Language | 英语 |
| WOS Headings | Science & Technology ; Physical Sciences |
| WOS Subject | Chemistry, Analytical |
| WOS Keyword | QUANTITATIVE ELEMENTAL ANALYSIS ; INDUCED PLASMA SPECTROSCOPY ; STEEL ; SPECTROMETRY ; TECHNOLOGY ; MATRIX ; WATER ; MELTS |
| WOS Research Area | Chemistry |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sia.cn/handle/173321/7069 |
| Collection | 工业信息学研究室 |
| Corresponding Author | Yu HB(于海斌) |
| Affiliation | 1.Key Laboratory of Industrial Informatics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China 2.Graduate School, the Chinese Academy of Sciences, Beijing, 100039, China |
| Recommended Citation GB/T 7714 | Sun LX,Yu HB. Correction of self-absorption effect in calibration-free laser-induced breakdown spectroscopy by an internal reference method[J]. Talanta,2009,79(2):388-395. |
| APA | Sun LX,&Yu HB.(2009).Correction of self-absorption effect in calibration-free laser-induced breakdown spectroscopy by an internal reference method.Talanta,79(2),388-395. |
| MLA | Sun LX,et al."Correction of self-absorption effect in calibration-free laser-induced breakdown spectroscopy by an internal reference method".Talanta 79.2(2009):388-395. |
| Files in This Item: | Download All | |||||
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| YWQK000099.pdf（1043KB） | 期刊论文 | 出版稿 | 开放获取 | ODC PDDL | View Download | |
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