Ion transfer electrochemistry of the alkaloids berberine and palmatine: Sensing and physicochemical characterization

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Olmos, JM (Author) FCUP; Carlos M Pereira (Author) FCUP

Journal

Title: Journal Of Electroanalytical Chemistry

Vol. 895

ISSN: 1572-6657

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 2 Citations

Other information

Authenticus ID: P-00V-8WT

DOI: 10.1016/j.jelechem.2021.115506

Abstract (EN): The electrochemical behaviour of the alkaloids berberine and palmatine at the polarized water/1,2-dichloroethane interface is studied by first time. The interface is supported on the micropores of a PET (polyethylene terephthalate) membrane by using an electrochemical cell employed in previous works. Chronoamperometry and square wave voltammetry are applied in order to determine the concentrations of the ions berberine and palmatine in water. Thus, calibration curves are built with both techniques and the resulting detection limits are discussed and compared. In addition, the chronoamperograms and square wave voltammograms recorded are used to estimate the standard transfer potentials and the aqueous diffusion coefficients for the two cations. The diffusion coefficient values are further compared with results of molecular dynamic simulations, finding a good correlation between experimental and simulated data.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9