A new approach for quick simultaneous and multielemental characterization of heterogeneous solid samples using laser-induced breakdown spectrometry (LIBS) is presented. The basic idea relies on focusing
the incident laser beam with a cylindrical lens to produce a long and narrow microline plasma. The emitted light is then projected along the spectrograph slit, where each ablated location on the sample
generates a signal at a defined height, and acquired with a charge-coupled device (CCD) detector. The method has been tested for compositional mapping of solar cells, enabling a 25-fold increase of analysis
speed as compared to conventional LIBS configuration.
Department of Analytical Chemistry, Faculty of Sciences, University of Málaga, E-29071 Málaga, Spain.
Publication date: October 1, 2000
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