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.