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A multifunctional sampling chamber was developed for laser-induced breakdown spectroscopy (LIBS) for field elemental analysis. The apparatus consisted of a chamber, an optical module, and a spectrometer controlled by lab-constructed software to achieve full automation. A number of samples may be simultaneously and automatically measured since a servomotor rotated eight sample compartments in the chamber that may filled with inert gas to enhance the intensity of the signal. A heater in the sample compartments allowed variation of the temperature. The system was used for the rapid and direct measurement of solid, liquid, and powders after simple preprocessing. The apparatus was evaluated for the qualitative analysis of drilling fluid. Eleven elements, Zn, Ni, Fe, Mn, Si, Al, Cr, Ca, Mg, K, and Na, were detected. The results demonstrate successful application for the analysis of multiple elements by LIBS.
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Wang et al. (2015) studied this question.
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