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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Voltammetric nanostructure based sensor for determination of Sudan I in food samples
International Journal of Electrochemical Science, Volume 10, No. 4, Year 2015
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Description
Ionic liquid/CdO/NPs carbon paste electrode (IL/CdO/NPs/CPE) has been used as a high sensitive sensor for the professional quantitative determination of sudan I in food samples in aqueous solution. In the first step, CdO/NPs synthesis using chemical precipitation method and characterized with different methods such as transmission electron microscopy (TEM) and X-ray diffraction (XRD). The propose sensor shows a better electrochemical response with lower over-potential and high sensitivity for sudan I compared with unmodified carbon paste electrode using linear sweep voltammetry (LSV). The electro-oxidation of sudan I occurred in a pH-dependent e- and H+ process, and the electrode reaction followed a diffusion-controlled pathway. Under the optimum conditions in square wave voltammetry (SWV), the voltammetric oxidation peak current of sudan I showed linear dynamic ranges with a detection limit of 0.05 μM for sudan I. The modified electrode was successfully used for the determination of the analytes in real samples with satisfactory result. © 2015 The Authors.
Authors & Co-Authors
Karimi‑Maleh, Hassan
Iran, Kerman
Graduate University of Advanced Technology
Abbasghorbani, Maryam
Iran, Tehran
Research Institute of Petroleum Industry, Tehran
Beitollahi, Hadi
Iran, Kerman
Graduate University of Advanced Technology
Atar, Necip
Turkey, Denizli
Pamukkale Üniversitesi
Statistics
Citations: 21
Authors: 4
Affiliations: 5
Identifiers
ISSN:
14523981
Research Areas
Environmental
Food Security
Study Approach
Quantitative
Study Locations
Sudan