%0 Journal Article %T Modification of a pencil graphite electrode with multiwalled carbon nanotubes capped gold nanoparticles for electrochemical determination of tramadol %A Kolahi Ahari, Simin %A Deiminiat, Behjat %A Ronaghi, Gholam Hossein %J Journal of Electroanalytical Chemistry %@ 1572-6657 %D 2020