Issue 10, 2012

Retracted Article: Modified multiwalled carbon nanotubes paste electrode as a sensor for the electrocatalytic determination of N-acetylcysteine in the presence of high concentrations of folic acid

Abstract

A new vinylferrocene modified-multiwalled carbon nanotubes paste electrode was prepared and used for the determination of N-acetylcysteine (N-AC) and folic acid (FA). Using the modified electrode, a highly selective square wave voltammetric method for the simultaneous determination of N-AC and FA was developed. The peak currents of N-AC and FA increased linearly with their concentration in the ranges of 0.1–662 and 10.0–900 μmol L−1, respectively, with corresponding detection limits of 0.09 and 7.0 μmol L−1. The RSD% for 0.7 μmol L−1N-AC was 1.5%, whereas for 15.0 μmol L−1 FA, it was 1.9%. Well separated oxidation peaks of N-AC and FA were obtained at pH 7.0 with this modified electrode. The modified electrode was successfully applied for the simultaneous determination of N-AC plus FA in real samples.

Graphical abstract: Retracted Article: Modified multiwalled carbon nanotubes paste electrode as a sensor for the electrocatalytic determination of N-acetylcysteine in the presence of high concentrations of folic acid

Associated articles

Article information

Article type
Paper
Submitted
18 Nov 2011
Accepted
10 Jul 2012
First published
08 Aug 2012

Anal. Methods, 2012,4, 3268-3274

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