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Elemental analysis by microwave-assisted laser-induced breakdown spectroscopy: Evaluation on ceramics.
- Source :
-
JAAS (Journal of Analytical Atomic Spectrometry) . Aug2010, Vol. 25 Issue 8, p1316-1323. 8p. - Publication Year :
- 2010
-
Abstract
- A new Laser-Induced Breakdown Spectroscopy (LIBS) enhancement method utilizing interaction between microwave radiation and laser-induced plasma has been evaluated. Experimental parameters such as laser pulse irradiance, microwave duration, and surrounding gas were studied and optimized for the microwave effect through a series of experiments on a piece of alumina ceramic sample. Up to 33 times enhancement on different spectral lines was achieved. Enhancement of the line intensity was found to be at a maximum when the laser ablation was induced at low irradiance on a large area in normal atmosphere. The enhancement was element-dependent and stronger for transitions with low excitation energy. The microwave enhancement in argon atmosphere was not as effective as in air, and the reasons are discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02679477
- Volume :
- 25
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- JAAS (Journal of Analytical Atomic Spectrometry)
- Publication Type :
- Academic Journal
- Accession number :
- 52703611
- Full Text :
- https://doi.org/10.1039/c003304a