Sensors based on conductive polymers constitute promising technologies to monitor ammonia. Polyaniline (PAni), doped with an acid, is commonly used for these applications. However, PAni is poorly soluble in most of organic solvents. When m-cresol is identified as a good solvent to stabilize PAni, it can’t be used in industrial fabrication processes due to its toxicity. The objective is to study alternative solvents having similar structures than m-cresol to disperse PAni and provide sensing performances to ammonia from obtained active surface layers.