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A gold nanoparticles/TiO 2 composite modified Indium tin oxide (ITO) electrode has been constructed to study the electrochemical behaviour of catechol (CC) and hydroquinone (HQ) using cyclic voltammetry and differential pulse voltammetry (DPV). Increasing of separation of the oxidative peak potentials and peak current for CC and HQ in pH 6.0 phosphate buffer solution (PBS), make it suitable...
The monitoring of synthetic colourants in foods is very important due to their potential toxicity and pathogenicity. Herein, an electrochemical sensor for rapid and simple detection of Ponceau 4R and Allura Red was constructed using multi-wall carbon nanotube (MWNT) sensing film. In pH 7.0 phosphate buffer, two oxidation peaks are observed at 0.56 and 0.68V for Ponceau 4R and Allura Red. Because of...
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