Edna Melissa Valenzuela Acosta, O. A. de Fuentes, Y. Prokhorov, J. Gabriel Luna Barcenas
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Chitosan-au nanocomposite: Preliminary studies of its potential application in electrochemical sensors
Chitosan-gold nanocomposite has been synthesized by the Turkevich method and the final properties of nanocomposite have been investigated using electrical impedance spectroscopy, UV-vis spectroscopy, TEM and potentiometric measurements. We explore the possibility to detect copper ions using electrical impedance measurements in a linear range of 1-60 ppm, and using potentiometric measurements in a concentration range of 1.5-2.7×103 ppm. Preliminary studies confirm that chitosan-gold nanocomposite could be use as an alternative material for the development of electrochemical sensors for copper ions detection.
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