Emission spectra of MgI and MgII from a plasma induced by the interaction of a laser
pulse with the surface of aqueous solutions of MgCl2, were recorded by a time
resolved spectroscopy method to obtain information on the processes involved in the
formation and the evolution of the two different species. A kinetic model based on
ion-electron recombination produced during the relaxation of the plasma is
constructed with the aim to explain the origin and the temporal shift of observed Mg+ and Mg emissions. Comparison with the experimental results is presented and discussed.