On the basis of the analysis of the features of temperature programmed desorption curves and of the advantage of extracting kinetic parameters and deducing desorption mechanism from the analysis of a single peak, a procedure which allows when necessary, the existence of multiple peaks and their deconvolution, is described. It also confirms the goodness of the results by means of a non-linear regression method of analysis and by means of the comparison with reconstructed rising temperature desorption curves.