Analysis card

analysis card (1) in which are formed two chambers (2, 3) insulated with respect to one another, characterized in that the two chambers are separated from each other by a partition ( 7) pierceable disposed to his said card, absorbent material, in particular plastic, absorbing light energy having at least one predetermined wavelength is, to transform it into thermal energy capable of removing at least locally said material, two cavities (8, 9) are formed on either side of the partition (7), and are in communication with or included in the two chambers respectively (2, 3) respectively, a window (10, 11 ) of a transparent material at least to the wavelength is arranged vis-a-vis to said partition (7) and defines therewith one (8) of said cavities, referred to as a impact light beam (12).