A Simple and Rapid Estimation of Totals Polyphenols Based On Carbon Paste Electrode Modified with Ruthenium Oxo-Complex

A simple and fast method based on electrochemical measurements was proposed for estimation of total polyphenols using a carbon paste modified electrode. The method was based on catalytic response exhibited by a ruthenium complex [(bpy)2(NH3)RuIII(µ‐O)RuIII(NH3)(bpy)2]4+ in presence of gallic acid (G...

Full description

Saved in:
Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2015-10, Vol.27 (10), p.2371-2376
Main Authors: Raymundo-Pereira, Paulo A., Teixeira, Marcos F. S., Caetano, Fábio R., Bergamini, Márcio F., Marcolino-Júnior, Luiz H.
Format: Article
Language:English
Subjects:
Calibration
Carbon
Carbon paste modified electrode
Catalysis
Electrodes
Gallic acid
Pastes
Polyphenols
Polyphenols estimation
Ruthenium
Ruthenium oxo-complex
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A simple and fast method based on electrochemical measurements was proposed for estimation of total polyphenols using a carbon paste modified electrode. The method was based on catalytic response exhibited by a ruthenium complex [(bpy)2(NH3)RuIII(µ‐O)RuIII(NH3)(bpy)2]4+ in presence of gallic acid (GA). Calibration plots using chronoamperometry (CA) showed a linear response for GA concentrations ranging from 6.6×10−6 to 1.9×10−4 mol L−1 with a detection limit of 4.9×10−7 mol L−1. Comparative studies using the official method revealed a good agreement between methods suggesting that the proposed method can be applied for polyphenol estimation without any sample treatment.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201500193