Comparison of double-pulse and single-pulse laser-induced breakdown spectroscopy techniques in the analysis of powdered samples of silicate raw materials for the brick-and-tile industry |
| |
Authors: | Tereza ?tvrtní?ková Luisa M Cabalín Javier Laserna Viktor Kanický |
| |
Institution: | 1. Laboratory of Atomic Spectrochemistry, Department of Chemistry, Faculty of Science, Masaryk University, Brno, Kotlá?ská 2, 611 37 Brno, Czech Republic;2. Department of Analytical Chemistry, Faculty of Science, University of Málaga, E29071 Málaga, Spain;3. On leave from the University of Málaga, Spain |
| |
Abstract: | Single- and double-pulse laser-induced breakdown spectroscopy techniques applied to the analysis of pressed pellets of silicate raw materials were compared in terms of precision, sensitivity and limits of detection. Two Nd:YAG lasers (1064 and 532 mm) in an orthogonal configuration with a reheating arrangement have been employed. The main factors influencing system performance were optimized, i.e. laser pulse energies and interpulse separation. The behaviour of plasma temperature was studied over a period of time and calibration curves for Mg were constructed for both the single and double-pulse setup. When comparing the single- and double-pulse techniques, limits of detection of Si and Mg for the double-pulse technique were found to be 10 times lower. |
| |
Keywords: | Laser-induced breakdown spectroscopy Double-pulse Powdered samples Pellets Brick clay |
本文献已被 ScienceDirect 等数据库收录! |
|