The mutual effect of metal sample and turboflame in LIBS signal enhancement
| Autor: | Hossein Saghafifar, Abdollah Eslami Majd, A. Maleki, S. M. R. Darbani, Seyyed Jabbar Mousavi, Mahsa Ghezelbash |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Analytical chemistry chemistry.chemical_element Inductor 01 natural sciences law.invention 010309 optics Metal Nuclear magnetic resonance law 0103 physical sciences Laser-induced breakdown spectroscopy business.industry Pulse (signal processing) 010401 analytical chemistry Laser Copper Sample (graphics) Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry visual_art visual_art.visual_art_medium Photonics business |
| Zdroj: | Optics and Spectroscopy. 121:174-180 |
| ISSN: | 1562-6911 0030-400X |
| Popis: | The main aim of the present study is to evaluate the mutual effect of copper sample and turboflame in laser induced breakdown spectroscopy (LIBS) signal enhancement. The use of copper sample leads to a signal enhancement in CN (B2Σ+–X2Σ+) 384.2–388.4 nm molecular transition, N742nm, N744nm, N746nm (a triplet generated by the fine splitting of the 2s22p2(3P)3s–2s22p2(3P)3p transition) and Hα, 656.3 nm (as a flame inductor) atomic lines analysis. Additionally, increase in copper sample temperature with flame can enhance the Cu atomic line intensities (as copper sample inductors). Moreover, in this paper, the comparison between turboflame and alcohol flame on LIBS analysis was studied. LIBS signal intensity variation in a turboflame and turboflame coupled with copper sample at different laser pulse energies indicated that the low laser pulse energy could be compensated by using a copper sample that is coupled with turboflame and improved LIBS signal enhancement. For flames analysis, the use of metal sample in LIBS method is demonstrated to be costeffective, compact, and capable of signal enhancement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|