Electro-oxidation and determination of antihistamine drug, cetirizine dihydrochloride at glassy carbon electrode modified with multi-walled carbon nanotubes

▶ MWCNT modified GCE has been developed for electrocatalytic oxidation of cetirizine. ▶ The electrochemical oxidation was an irreversible and adsorption controlled process. ▶ For voltammetric determination of cetirizine the detection limit was 7.07 × 10−8 M. ▶ The method was used for cetirizine determination in pharmaceutical and urine sample.