Electrochemical Determination of Trace Sudan I Contamination in Chili Powder at Carbon Nanotube Modified Electrodes

We have developed a simple, convenient and inexpensive voltammetric method for determining trace Sudan I contamination in chili powder, based on the catalyzed electrochemical reduction of Sudan I at the carbon nanotube modified electrode. Under optimized conditions, the method exhibited acceptable a...

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Detalles Bibliográficos
Autores principales: Ming, Liang, Xi, Xia, Chen, Tingting, Liu, Jie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2008
Materias:
Full Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3663031/
https://www.ncbi.nlm.nih.gov/pubmed/27879800
Descripción
Sumario:We have developed a simple, convenient and inexpensive voltammetric method for determining trace Sudan I contamination in chili powder, based on the catalyzed electrochemical reduction of Sudan I at the carbon nanotube modified electrode. Under optimized conditions, the method exhibited acceptable analytical performance in terms of linearity (over the concentration range 6.0×10(−7) to 7.5×10(−5) M, r = 0.9967), detection limit (2.0×10(−7) M) and reproducibility (RSD = 4.6%, n=10, for 2.0×10(−5) M Sudan I).

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