one-step electrochemical modification of pencil graphite electrode with poly(dpasa-co-vp)-ruo2 nps and its application for the trace analysis of sumatriptan

A straightforward, simple and one step modification of pencil graphite electrode was performed using co-polymerization of diphenyl amine- 4-sulfonic acid sodium salt and 4-vinylpyridine and also simultaneous formation of ruthenium dioxide nanoparticles (poly(dpasa-co-vp)- ruo2 nps/pge). then, the modified electrode was utilized to measure sumatriptan using a sensitive adsorptive differential pulse voltammetric technique.