Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12313/2435
Title: A New Electrochemical Method to Detect Sunset Yellow, Tartrazine and Thiomersal in a Pharmaceutical Dose Using a Carbon Paste Electrode Decorated with Molybdenum Oxide
Authors: Penagos‐Llanos, Johisner
García‐Beltrán, Olimpo
Nagles, Edgar
Hurtado, John J.
Keywords: Carbon paste
Molybdenum oxide
Sunset yellow
Tartrazine
Thiomersal
Issue Date: 9-Jul-2020
Publisher: Electroanalysis
Citation: Penagos-Llanos, J., García-Beltrán, O., Nagles, E., & Hurtado, J. J. (2020). A new electrochemical method to detect sunset yellow, tartrazine and thiomersal in a pharmaceutical dose using a carbon paste electrode decorated with molybdenum oxide. Electroanalysis
Abstract: His report allowed the detection of three substances using a carbon paste decorated with MoO2 (MoO/CPE). Tartrazine (TZ), sunset yellow (SY) and thiomersal (TMS) were analyzed for adsorptive voltammetry. The electrode was characterized by scanning electron microscopy, energy dispersive spectroscopy and cyclic voltammetry. TZ, SY and TMS were observed at 1.07, 0.80 and 0.95 V respectively. The detection limits (3*σ/m) for TZ, SY and TMS were 0.04, 0.06 and 0.10 μmol/L, respectively. The new analytical method was applied using pharmaceutical samples.
URI: https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/elan.202060008
ISSN: 1040-0397
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