Voltammetric Detection of Levodopa and Benserazide at Polypyrrole and Single Walled Carbon Nanotube Based Electrode

In this study, it was aimed to use pyrrole monomer and single-walled carbon nanotube (SWCNT) in the production of modified electrodes, examine electrochemical properties these electrodes. Bulk electrolysis technique used for growing polypyrrole. The applicability polypyrrole SWCNT-based electrodes tested by electrochemically detecting active substances such as levodopa (LD) benserazide (BS) treatment Parkinson's disease. During design analysis phase electrode, many electroanalytical optimization validation parameters were examined. developed electrode gave linear responses with DPV concentration ranges 10 - 50 μM LD BS. addition, limits detection wide obtained very low. Limits calculated 2.4 1.2 BS, respectively. designed method urine drug samples. selectivity carried out placebo solutions containing interfering species. It is advantageous that ingredients are easily, selectively quickly determined at presence components affect analysis. Eventually, satisfactory results terms analytical performance have been achieved electrode.