Gold nanoparticle/double-walled carbon nanotube-modified glassy carbon electrode and its application

A sensor based on gold nanoparticle/double-walled carbon nanotube-modified glassy carbon electrode is prepared. Electrochemical behavior of dopamine hydrochloride at gold nanoparticle/double-walled carbon nanotube-modified glassy carbon electrode is investigated. A simple, sensitive, and inexpensive method for determination of dopamine hydrochloride is proposed.