Electrochemical Determination of Tartrazine in Foods by Voltammetry with a Screen-printed Carbon/Chitosan-MnO2 Microcomposite Electrode

Edgar Nagles; John J. Hurtado

doi:10.1002/elan.202200394

Electrochemical Determination of Tartrazine in Foods by Voltammetry with a Screen-printed Carbon/Chitosan-MnO₂ Microcomposite Electrode

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Resumen

This paper presents a new application for a screen-printed carbon electrode (SPCE) modified with chitosan (Cs) and manganese oxide (II). This new electrode (Cs-Mn_OX/SPCE) was applied in the detection of tartrazine (TZ) by linear scan voltammetry (LSV). The anodic peak current for TZ increased by nearly 500 % compared with Cs/SPCE and unmodified SPCE. The surface of the electrode was characterized by cyclic voltammetry. The detection limit was 0.06 μmol/L. The relative standard deviations (RSDs) were between 1.0 and 6.0 % (n=15). The accuracy of the new method was evaluated with real samples spiked with known quantities of TZ.

Idioma original	Inglés
Número de artículo	e202200394
Publicación	Electroanalysis
Volumen	35
N.º	4
DOI	https://doi.org/10.1002/elan.202200394
Estado	Publicada - abr. 2023

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© 2022 Wiley-VCH GmbH.

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title = "Electrochemical Determination of Tartrazine in Foods by Voltammetry with a Screen-printed Carbon/Chitosan-MnO2 Microcomposite Electrode",

abstract = "This paper presents a new application for a screen-printed carbon electrode (SPCE) modified with chitosan (Cs) and manganese oxide (II). This new electrode (Cs-MnOX/SPCE) was applied in the detection of tartrazine (TZ) by linear scan voltammetry (LSV). The anodic peak current for TZ increased by nearly 500 % compared with Cs/SPCE and unmodified SPCE. The surface of the electrode was characterized by cyclic voltammetry. The detection limit was 0.06 μmol/L. The relative standard deviations (RSDs) were between 1.0 and 6.0 % (n=15). The accuracy of the new method was evaluated with real samples spiked with known quantities of TZ.",

keywords = "Lineal scan voltammetry, carbon paste, chitosan, manganese oxide (II), tartrazine",

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N2 - This paper presents a new application for a screen-printed carbon electrode (SPCE) modified with chitosan (Cs) and manganese oxide (II). This new electrode (Cs-MnOX/SPCE) was applied in the detection of tartrazine (TZ) by linear scan voltammetry (LSV). The anodic peak current for TZ increased by nearly 500 % compared with Cs/SPCE and unmodified SPCE. The surface of the electrode was characterized by cyclic voltammetry. The detection limit was 0.06 μmol/L. The relative standard deviations (RSDs) were between 1.0 and 6.0 % (n=15). The accuracy of the new method was evaluated with real samples spiked with known quantities of TZ.

AB - This paper presents a new application for a screen-printed carbon electrode (SPCE) modified with chitosan (Cs) and manganese oxide (II). This new electrode (Cs-MnOX/SPCE) was applied in the detection of tartrazine (TZ) by linear scan voltammetry (LSV). The anodic peak current for TZ increased by nearly 500 % compared with Cs/SPCE and unmodified SPCE. The surface of the electrode was characterized by cyclic voltammetry. The detection limit was 0.06 μmol/L. The relative standard deviations (RSDs) were between 1.0 and 6.0 % (n=15). The accuracy of the new method was evaluated with real samples spiked with known quantities of TZ.

KW - Lineal scan voltammetry

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