Acetylene black nanoparticle-modified electrode as an electrochemical sensor for rapid determination of rutin

Acetylene black nanoparticles were homogeneously dispersed into water in the presence of hydrophobic surfactant and then used to modify the surface of a glassy carbon electrode. An examination of the electrochemistry of rutin showed that this modification of the electrodes resulted in a considerable enhancement of the surface, thus remarkably increasing the signal for rutin. As a result, a sensitive and convenient electrochemical method was developed for the determination of rutin. The linear range is from 20 μg L^-1 to 5 mg L^-1, and the limit of detection is 10 μg L^-1. The method was successfully employed to the determination of rutin in traditional Chinese medicines.