New procedure for quantitative elemental analysis by laser-induced plasma spectroscopy

A new procedure, based on the laser-induced plasma spectroscopy (LIPS) tech nique, is proposed for calibration-free quantitative elemental analysis of materials. The method here presented, based on an algorithm developed and p atented by IFAM-CNR, allows the matrix effects to be overcome, yielding pre cise and accurate quantitative results on elemental composition of material s without use of calibration curves. Some applications of the method are il lustrated, for quantitative analysis of the composition of metallic alloys and quantitative determination of the composition of the atmosphere.