It is provided an analysing device (1) for urine adapted to determine the value of physico-chemical features of an urine sample exactly as it is said analysis device (1) comprising a fluid admission system including a sampler (60a) adapted to be brought into connection for fluid passage with the patient and to measure an urine portion to be analysed an analysis station (20) put in connection for fluid passage with the fluid admission system and adapted to carry out the analysis of the urine to be analysed and comprising a plurality of ionoselective electrodes (22), each of which is suitable to determine at least one first parameter that is a function of at least one of the values of the physico-chemical features, and wherein the command and control unit (70) is adapted to carry out an interpolation between the first parameters for determining at least one of the values of the physico-chemical features.
