Electrochemical fabrication of a novel ZnO/cysteic acid nanocomposite modified electrode and its application to simultaneous determination of sunset yellow and tartrazine

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

“…Similar results have been reported with other metals such as vanadium . In other reports, anodic peak currents for SY and TZ using Au nanoparticles , graphene , Ni nanoparticles , Pt nanoparticles , ZnO/cysteic acid and β‐cyclodextrin/diallyldimethylammoniumchloride were reported at more positive potential values. The optimal concentration of Nd 2 O 3 for 30.0 mg of carbon paste and 30.0 μL of paraffin oil was 2.0 mg.…”

“…The detection limits (3σ/b) were 0.02 μmol L −1 for TZ and 0.09 μmol L −1 for SY. Previous works for the simultaneous detection of TZ and SY have reported detection limits between 0.06 and 0.001 μmol L −1 and between 0.03 and 0.001 μmol L −1 for TZ and SY using different substances, such as graphene and metal nanoparticles . All of these results indicated that the detection limit for TZ was lower than that of SY.…”

“…On the other hand, electrochemical techniques have shown promise in food analysis due to their portability, short analysis times, inexpensive equipment, excellent sensitivity and potential for automation . A variety of modified electrodes, such as graphene, metal ion nanoparticles, metal oxides and carbon nanotubes bismuth films , boron‐doped diamonds , dropping mercury electrodes (DMEs) and hanging mercury drop electrodes (HMDEs) , have been developed for the simultaneous determination of TZ and SY.…”

Simple Flow Injection Analysis System Coupled to Multiple‐Pulse Amperometry and a Boron‐Doped Diamond Electrode for the Simultaneous Determination of Sunset Yellow and Aspartame

“…As expected (see Figure ), both analytes exhibit a current peak during the positive scan of the electrode potential (at about 0.96 V for SY and 1.8 V for AS), indicating oxidation processes of these analytes. According to Dorraji and Jafali, the electrochemical oxidation mechanism of SY involves one electron and one proton, with the oxidation occurring in the hydroxyl group; for AS, the mechanism also involves one electron and one proton to produce hydroxylamine and an aldehyde…”

Exploring the Interaction of Tartrazine and Lipase: A Multispectroscopic Analysis, Docking and Computational Simulation Methods

“…Generally speaking, synthetic dyes contain azo functional groups and aromatic ring structures, which are harmful to human health. Long-term intake or intake of foods containing large amounts of tartrazine can cause allergies, migraines, eczema, anxiety, and digestive system 2 . Excessive intake of tartrazine may exceed the affordability of the liver and accumulate in the body, resulting in kidney and liver damage 3 .…”