Abstract
A novel selective nano-chitosan liquid membrane sensor depends on the combination between chitosan and 2-(5-Bromo-2-Pyridylazo)-5-[N-n-Propyl-N-(3-sulfopropyl)amino]aniline reagent was success-fully developed. The characteristics slope (54 mV/decade),linear range response from 1.0×10−7-1.0×10−2 M, limit of detection(1.47 × 10-8) M, selectivity study toward some inorganic cations, the time of response(10s), lifespan (five months), pH influence on the electrode potential and the crucial characteristic factors were studied. The electrode was successfully employed to estimate nano-chitosan in food supplements and fruit juice with nano-chitosan. The results obtained by the nominated sensor were analyzed, statistically treated and compared with the other recently described sensors.