Development of a Novel Electrochemical Sensor Based on a Carbon Paste Electrode Decorated with Nd2O3 for the Simultaneous Detection of Tartrazine and Sunset Yellow

Karen Marquez-Mariño; Johisner Penagos-Llanos; Olimpo García-Beltrán; Edgar Nagles; John J. Hurtado

doi:10.1002/elan.201800550

Development of a Novel Electrochemical Sensor Based on a Carbon Paste Electrode Decorated with Nd₂O₃ for the Simultaneous Detection of Tartrazine and Sunset Yellow

Karen Marquez-Mariño, Johisner Penagos-Llanos, Olimpo García-Beltrán, Edgar Nagles, John J. Hurtado

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

The simultaneous detection of tartrazine (TZ) and sunset yellow (SY) using a carbon paste-decorated neodymium (III) oxide electrode (Nd_Ox/CPE) is reported for the first time in this work. The surface properties of the Nd_Ox/CPE were studied by cyclic voltammetry, electrochemical impedance spectroscopy and scanning electron microscopy. The anodic peak currents for TZ and SY increased by more than 60 %, and the anodic peak potentials for TZ and SY were observed at potential values less positive than those of the carbon paste without Nd_OX. Under the optimal parameters (pH 3.0; accumulation time t_ACC 30 s; and accumulation potential E_ACC 0.10 V), the detection limits for TZ and SY observation were 0.02 μmol L⁻¹ (10.6 μg L⁻¹) and 0.09 μmol L⁻¹ (40.6 μg L⁻¹), respectively. The new sensor was sensitive, stable, easily manufactured, and very convenient for the detection of TZ and SY in food samples and pharmaceutical materials and provided consistent results.

Original language	English
Pages (from-to)	2760-2767
Number of pages	8
Journal	Electroanalysis
Volume	30
Issue number	11
DOIs	https://doi.org/10.1002/elan.201800550
State	Published - Nov 2018

Bibliographical note

Funding Information:
We thank the Department of Chemistry and the School of Science of the Universidad de los Andes for their financial support. E. N and O. G thank the financial support of the Universidad de Ibagué (projects 16-416 INT and 18-541-INT). These organizations are gratefully acknowledged.

Publisher Copyright:
© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

Carbon paste
Modified electrodes
Neodymium (III) Oxide
Sunset yellow
Tartrazine

Access to Document

10.1002/elan.201800550

Cite this

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title = "Development of a Novel Electrochemical Sensor Based on a Carbon Paste Electrode Decorated with Nd2O3 for the Simultaneous Detection of Tartrazine and Sunset Yellow",

abstract = "The simultaneous detection of tartrazine (TZ) and sunset yellow (SY) using a carbon paste-decorated neodymium (III) oxide electrode (NdOx/CPE) is reported for the first time in this work. The surface properties of the NdOx/CPE were studied by cyclic voltammetry, electrochemical impedance spectroscopy and scanning electron microscopy. The anodic peak currents for TZ and SY increased by more than 60 %, and the anodic peak potentials for TZ and SY were observed at potential values less positive than those of the carbon paste without NdOX. Under the optimal parameters (pH 3.0; accumulation time tACC 30 s; and accumulation potential EACC 0.10 V), the detection limits for TZ and SY observation were 0.02 μmol L−1 (10.6 μg L−1) and 0.09 μmol L−1 (40.6 μg L−1), respectively. The new sensor was sensitive, stable, easily manufactured, and very convenient for the detection of TZ and SY in food samples and pharmaceutical materials and provided consistent results.",

keywords = "Carbon paste, Modified electrodes, Neodymium (III) Oxide, Sunset yellow, Tartrazine",

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Development of a Novel Electrochemical Sensor Based on a Carbon Paste Electrode Decorated with Nd₂O₃ for the Simultaneous Detection of Tartrazine and Sunset Yellow. / Marquez-Mariño, Karen; Penagos-Llanos, Johisner; García-Beltrán, Olimpo et al.
In: Electroanalysis, Vol. 30, No. 11, 11.2018, p. 2760-2767.

Research output: Contribution to journal › Article › peer-review

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