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Título

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

AutorGeto, Alemnew; Pita, Marcos ; Lacey, Antonio L. de; Tessema, Merid; Admassie, Shimelis
Palabras claveBerberine
Carbon nanotube
Argemone mexicana
Modified electrode
Alkaloid
Fecha de publicación5-jul-2013
EditorElsevier
CitaciónSensors and Actuators - B - Chemical Biochemical Sensors 183: 96-101 (2013)
ResumenAn 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 μM range with a detection limit (3σ, n = 10) of 0.14 μM. The proposed procedure was successfully applied to determine total berberine in Argemone mexicana seed sample with good recovery.
Versión del editorhttps://doi.org/10.1016/j.snb.2013.03.121
URIhttp://hdl.handle.net/10261/163799
DOI10.1016/j.snb.2013.03.121
ISSN0925-4005
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