Abstract:
The invention relates to a method for spectroscopy of the optical emission of a liquid (301) excited by a pulsed laser focussed on the surface thereof. According to the invention, said method is characterized in that the area of analysis is scanned (304) by a laminar discharge of gas (309) whose velocity and section are such that it is possible to remove the residues of the plasma suspended in the gas, resulting from a first laser pulse, before the subsequent laser pulse occurs.
Abstract:
The invention relates to an optical emission spectroscopy method for qualitatively and quantitatively analyzing samples involving excitation by laser (18) using a database created on monoelementary aqueous solutions all having the same concentration of a pure element, this database containing, for each element, wavelengths of emission lines and their respective intensity.