Laser Induced Breakdown Spectroscopy of powdered ceramic materials
| Authors | |
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| Year of publication | 2006 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | Laser induced breakdown spectroscopy (LIBS) is nowdays considered promising, efficient and widely applicable analytical technique of atomic spectroscopy. Laser - sample interaction results in microplasma production above the sample surface. The emission of exited sample atoms and ions is introduced into an optical spectrometer. The technique of LIBS offers capability of qualitative and quantitative analysis as well as providing information on spatial distribution of elements in various types of samples. Main advantage of LIBS consists in semi-destructive character of analysis, high sample throughput and usually no need for sample treatment. In this work possibility of analysis of real aluminosilicate samples by LIBS technique was studied. Laser ablation parameters such as laser pulse energy, laser beam focusing and delay time were optimized. Procedure for pellet preparation was accomplished. Calcium interference on the line Al (I) 396.153 nm was investigated and after the study of calcium influence on alternative line Al (I) 309.27 nm the spectral interference was excluded. It was confirmed that the increase of aluminium line 396.153 nm intensity by presence of calcium is due to non-spectral effect. Linearity of calibration curves was observed in the range 0 10 % of content of Al2O3. |
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