Laser-induced breakdown spectroscopy for on-line sulfur analyses of minerals in ambient conditions |
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| Authors: | M Gaft L Nagli I Fasaki M Kompitsas G Wilsch |
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| Institution: | aResearch Department, Laser Detect Systems, 11 Granit St., Petach Tikva 49514, Israel;bNational Hellenic Research Foundation, Theoretical and Physical Chemistry Institute, 48, Vasileos Konstantinou Ave, 11625 Athens, Greece;cBAM-Federal Institute for Materials Research and Testing, Unter den Eichen 87 12205 Berlin, Germany |
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| Abstract: | Different options of laser-induced breakdown spectroscopy arrangements for on-line analyses of sulfur in minerals in ambient conditions have been investigated. Depending on the sulfur concentration and the sample type, the following conditions appear as optimal: for concentration values of 20–30% (for example Cu and Ni ores, gypsum, anhydrite, and barite) it is the single-pulse option with emission in near infra-red; for concentration values of 5–10% it is the double-pulse option with emission in the green; for concentration values down to 0.2% (for example in coal) it is the single-pulse option in near VUV with a N2 filled spectrometer. |
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| Keywords: | LIBS Sulfur Ambient condition Mineral On-line analysis |
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