Original title: Silver Solid Amalgam Electrodes as Perspective Tools for Sensitive Voltammetric Determinations of Food Azo Dyes Amaranth and Allura Red AC
Authors: Tvorynska, S. ; Barek, J. ; Josypčuk, Bohdan
Document type: Papers
Conference/Event: Moderní elektrochemické metody /38./, Jetřichovice (CZ), 20180521
Year: 2018
Language: eng
Abstract: In this paper, for the first time, the electrochemical behaviours of the food azo dyes Amaranth (E 123) and Allura Red AC (E 129) were investigated on two modifications of silver solid amalgam electrode, namely mercury meniscus modified, polished and compared with hanging mercury drop electrode using differential pulse voltammetry and direct current voltammetry. The effect of adsorption and the reduction mechanism on tested electrodes were described in detail. Measurements with amalgam electrodes showed good reproducibility, stability and high sensitivity. As a result, they were successfully applied for the determination of investigated azo dyes in different commercial drink samples.
Keywords: amaranth; azo dyes; voltammetry
Project no.: GA17-03868S (CEP)
Funding provider: GA ČR
Host item entry: XXXVIII. Moderní elektrochemické metody. Sborník přednášek, ISBN 978-80-905221-6-9

Institution: J. Heyrovsky Institute of Physical Chemistry AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0284338

Permalink: http://www.nusl.cz/ntk/nusl-375654


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Research > Institutes ASCR > J. Heyrovsky Institute of Physical Chemistry
Conference materials > Papers