Essense of the method is measuring composition of desorbed gas from sample heated in a vacuum in dependence on the temperature. The method allows to determine binding energy of adsorbed atoms and molecules (or activation energy of desorption), amount of surface coverage by adsorbed substances, order of kinetics of adsorption process.

The method of photoelectron spectroscopy is a modern method of investigation of occupied electronic states in solids. It is based on the phenomenon of the photoelectric effect: electron in a solid is optically excited by a photon to the unoccupied state. Photoelectron spectroscopy of core levels enables to obtain quantitative information about elemental and chemical composition of the surface area of the samples. Method of elemental mapping of surface is used for study elemental and chemical composition of samples with lateral resolution, the implementation of this method is possible due to the presence of special microchannel plate, which allows to analyze the emitted photoelectrons from a solid body with a spatial resolution.