The main parameters affecting LIBS performance are laser intrinsic properties (i.e.wavelength, energy, pulse duration and shot-to-shot energy fluctuation), test sample presentation (i.e. chemical composition, analytes micro-homogeneity, particle size distribution, pellets porosity and density), surrounding atmosphere (gas composition and pressure), optical design (i.e. laser focusing and collection optics), and strategies for gathering the emission measurements (i.e. delay time, integration time gate, emission lines selection and amplification detector gain)