Analysis of Rock Powders by Laser-Induced Breakdown Spectroscopy Combined with the Graphite Doping Method
文献类型：期刊论文
| 作者 | Jia, J. J.1,2; Hongbo, F.1; Huadong, W.1,2; Fengzhong, D.1,2; Zhirong, Z.1,2 |
| 刊名 | JOURNAL OF APPLIED SPECTROSCOPY
 |
| 出版日期 | 2020-11-04 |
| 卷号 | 87 |
| 关键词 | laser-induced breakdown spectroscopy matrix effects grafite doping rock powder |
| ISSN号 | 0021-9037 |
| DOI | 10.1007/s10812-020-01089-w |
| 通讯作者 | Zhirong, Z.(jjw2014@mail.ustc.edu.cn) |
| 英文摘要 | The analysis of geological samples using laser-induced breakdown spectroscopy (LIBS) is strongly affected by matrix effects. To investigate the improvement of matrix effects by the graphite doping method, rock powder was mixed with graphite powder and pressed into pellets. Four groups of samples with the same graphite content were prepared from a mixture of seven different rock powders and four graphite powders (0, 25, 50, and 75 wt.%). To reduce some of the pulse-to-pulse fluctuations, the internal standardization method was adopted. Four sets of calibration curves of Ca and Mg were prepared using pellet samples with the same graphite content. The influence of graphite content on laser-induced plasma temperature and electron density was further investigated. The coefficients of determination (R-2) of the calibration curves after doping graphite are larger than those without doping, and the stability of the spectral intensity, plasma temperature, and electron density after doping are also improved. In particular, when the doping percentage is 50%, the matrix effect is significantly improved. The results show that the graphite doping method has great potential for improving the matrix effects of LIBS in the analysis of rock powder samples. |
| WOS关键词 | LIBS |
| 资助项目 | National Natural Science Foundation of China[61505223] ; project of China State Key Laboratory of Power Systems[SKLD18KM11] |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000585757400017 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; project of China State Key Laboratory of Power Systems |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/105157]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhirong, Z. |
| 作者单位 | 1.Chinese Acad Sci, Anhui Prov Key Lab Photon Devices & Mat, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, J. J.,Hongbo, F.,Huadong, W.,et al. Analysis of Rock Powders by Laser-Induced Breakdown Spectroscopy Combined with the Graphite Doping Method[J]. JOURNAL OF APPLIED SPECTROSCOPY,2020,87. |
| APA | Jia, J. J.,Hongbo, F.,Huadong, W.,Fengzhong, D.,&Zhirong, Z..(2020).Analysis of Rock Powders by Laser-Induced Breakdown Spectroscopy Combined with the Graphite Doping Method.JOURNAL OF APPLIED SPECTROSCOPY,87. |
| MLA | Jia, J. J.,et al."Analysis of Rock Powders by Laser-Induced Breakdown Spectroscopy Combined with the Graphite Doping Method".JOURNAL OF APPLIED SPECTROSCOPY 87(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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