dc.contributorUniversidade Federal de São Carlos (UFSCar)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T01:09:12Z
dc.date.accessioned2022-12-19T20:39:29Z
dc.date.available2020-12-12T01:09:12Z
dc.date.available2022-12-19T20:39:29Z
dc.date.created2020-12-12T01:09:12Z
dc.date.issued2020-03-01
dc.identifierMaterials Letters, v. 262.
dc.identifier1873-4979
dc.identifier0167-577X
dc.identifierhttp://hdl.handle.net/11449/198306
dc.identifier10.1016/j.matlet.2019.127186
dc.identifier2-s2.0-85076834948
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5378940
dc.description.abstractIn this work, we report the analytical detection of tartrazine through differential pulse voltammetry (DPV) using gold nanoparticles (AuNPs) and Nickel(II)-phthalocyanine-tetrasulfonic (NiTsPc). The Layer-by-Layer (LbL) film was constructed following the Au-(AuNPs-PAH/NiTsPc)5 architecture. The electric current characteristics of this sensor were verified by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). As a result of these measurements, a large and well-defined redox peak was obtained, indicating a significant enhancement in electron transfer. Excellent sensing performance was achieved with high sensitivity (25.79 ± 0.47 (µA cm−2) (µmol L−1)−1 and 8.80 ± 0.36 (µA cm−2) (µmol L−1)−1), low limit of detection (0.055 µmol L−1 and 0.122 µmol L−1), and excellent anti-interference and repeatability behavior. The Au electrode modified with the LbL film was also evaluated in commercially available juice samples with a recovery range from 97.74% to 108.26%.
dc.languageeng
dc.relationMaterials Letters
dc.sourceScopus
dc.subjectElectrochemical detection
dc.subjectGold-nanoparticles
dc.subjectLbL film
dc.subjectNickel-(II)-phthalocyanine-tetrasulfonic
dc.subjectTartrazine
dc.titleNickel (II) phthalocyanine-tetrasulfonic-Au nanoparticles nanocomposite film for tartrazine electrochemical sensing
dc.typeArtículos de revistas


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