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RevistaSensors & Actuators: B. Chemical
Año2013
Volumen183
Páginas96-101
Internacional

Electrochemical determination of berberine at a multi-walled carbon nanotubes modified glassy carbon electrode

Autores:Alemnew Geto , Marcos Pita Martínez, Antonio López de Lacey, Merid Tessema , Shimelis Admassie
Grupos de investigación:BioElectroCatálisis
An electrochemical method was developed for voltammetric determination of berberine, an alkaloid of pharmacological interest, using a glassy carbon electrode modified with multi-walled carbon nanotubes. The modified electrode exhibited higher electrocatalytic activity toward the oxidation of berberine than the bare glassy carbon electrode. After optimizing the experimental conditions and square wave voltammetry parameters a linear current response toward berberine was obtained in the 0.25–30 M range with a detection limit (3, n = 10) of 0.14 M. The proposed procedure was successfully applied to  determine total berberine in Argemone mexicana seed sample with good recovery.
Palabras clave:Berberine, Carbon nanotube, Argemone mexicana, modified electrode, alkaloid
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